Best Bivy Sacks: Reviews and Buying Guide

The best way to cut the weight of your baggage whenever you’re out for camping, hiking, or any outdoor activities is by eliminating the tent. If you’re looking for a superb alternative to tents, then a bivy sack can be a great help. The best bivy sacks can easily strive with the lightest tents on the market today.

Bivy sacks are personal-sized water-resistant shelters that are commonly used by minimalist campers, mountaineers, and hikers. However, due to lots of available options choosing the best bivy sacks can be a daunting task. To help you decide, in this article, we will review some of the best bivy sacks and walk you over every specification and feature of these products so you can determine which one is for you.

​Let’s get started.






Outdoor Research Alpine Bivy

Outdoor Research Alpine Bivy


outdoor bivy sacks

S.O.L Survive Outdoors Longer Escape Bivy


Tact Bivy Compact Ultra Lightweight Sleeping Bag

​Tact Bivy Compact Ultra Lightweight Sleeping


Woodland Camouflage Waterproof Bivy Cover

​Woodland Camouflage Waterproof Bivy cover


Life Bivy Emergency Sleeping Bag Thermal Bivvy

​Life Bivy Emergency Sleeping Bag Thermal Bivvy


Reviews of the Best Bivy Sacks in 2019

1. Outdoor Research Alpine Bivy – Best Bivy Sacks

Outdoor Research Alpine Bivy
72 Reviews
Outdoor Research Alpine Bivy
  • Weight: 32 oz.
  • Material: GORE-TEX Respiration Positive 3L, 100% nylon, 30D ripstop upper - 2L, 100% nylon, plain weave taffeta floor

The Outdoor Research Alpine Bivy is loaded with great features that make it more comfortable and versatile. When it comes to effectiveness and quality, this alpine bivy standout.

This bivy bag provides the perfect combination of durability, protection from elements, and comfort. The Outdoor Research Bivy offers exceptional protection from the weather. It means, with this item you can venture with confidence.

Though other best bivy sacks provide smaller packed sized and lighter weight, this model won’t let you down. Especially when the weather condition becomes worst.

​Either way, listed below are some of the main features of the Outdoor Research Alpine Bivy


This bivy shelter is made of a three-layer of Gore-Tex casing. This material lets water vapor to escape over the fabric without allowing snow or rain inside.

Even so, this bivy sock is waterproof.

The Alpine Bivy can be rolled out with ease. Moreover, it has interior straps which secure your sleeping pad. You can also stash your small items like a watch and cell phone in the mesh that is attached inside.

Furthermore, it comes with a line loop and five-stake loops which will hold the best bivy sacks in place. However, the stakes included in this bivy are light in weight.


This unit performed well when it comes to ventilation. It has lots of useful features which allows for additional ventilation. These features will keep the condensation down.

​Even so, in warm and clear weather, you can leave this bivy open letting warm air to circulate out.

What We Liked

  • ​Completely waterproof
  • ​Durable and comfortable
  • ​Easy to set up.
  • ​It also offers excellent protection.
  • Provides plenty of room for your valuables.
  • Made in USA

What We Didn’t Like

  • ​The upper Gore-Tex may fall down to your face while you’re utilizing the mesh cover.

Customer Reviews

Most customers said that this bivy sacks ​are entirely waterproof. It protects them in actual storms. Also, it has plenty of room where they can store your shoes, food, and clothing safely.

This product also keeps them warm during cold weathers. In addition, they proved that this sleeping bag shelter is made of high-quality materials.

​Either way, users loved how easy to set up this bivy sacks from Outdoor Research.

​Final Verdict

Even though it’s not the lightest or smallest in this bivy sacks review, indeed, Alpine Bivy is very comfortable, durable, and versatile.

This bivy bag is somewhat similar to ultra-light tents regarding bulk and weight. But it costs lesser compared to most ultra-light tent choices.

​Overall, the Outdoor Research Alpine Bivy is a great product.

2. S.O.L Survive Outdoors Longer Escape Bivy

S.O.L Survive Outdoors Longer Escape Series Bivvy
647 Reviews
S.O.L Survive Outdoors Longer Escape Series Bivvy
  • Emergency Escape bivvy reflects 70% of body heat to prevent heat loss and provide life-saving warmth
  • Highly durable, water-resistant fabric and drawstring hood keeps out the elements and keeps you dry
  • Bivvy design prevents condensation inside by allowing moisture out while keeping the rain out too
  • Made from quiet, tear-resistant material that won’t shred to pieces to keep you protected outdoors
  • Reusable bivvy can also be used as a camping gear tarp, sleeping bag, and much more

The S.O.L Escape Bivvy is transforming background shelter. This best bivy sack only weighs 8.1 ounces. However, its 70 percent reflective and breathable personal lodging will not let condensation to build up.

Its exclusive water-resistant drapery allows moisture to escape and keeps wind, rain, and snow on the outside. The good thing about this bivy is that you can utilize it as a regular sleeping bag.

Nonetheless, listed below are some of the main features of the S.O.L Escape Bivvy.


When it comes to durability, this product stands out. This sack made of durable fabrics that can resist tears and punctures through heavy usage.

It is also made of waterproof fabrics which keeps you dry even though the condition is soggy or wet.


​For maximum comfort, the manufacturer of this ultralight bivy equipped this with foot box, fully included a side zipper and draw-cord cover closure.

What We Liked

  • ​Waterproof
  • ​Light in weight
  • ​Offers protection and warmth
  • ​Made of high-quality fabrics and materials
  • ​Sports a beautiful and visible exterior

What We Didn’t Like

  • ​Doesn’t offer plenty of rooms for storage.
  • ​It is not breathable
  • ​It is not ideal for below freezing conditions
  • ​Only good for one person
  • ​If you’re big, you can’t utilize it with a wool blanket

Customer Reviews 

Customers are impressed with the product’s quality. Also, lots of users claim that this bivy sacks will last for a couple of years.

Even though it is not the very best bivy sack​s, the S.O.L Escape Bivvy can be a great help during emergency situations, say customers.

Final Verdict 

With S.O.L Escape Bivvy you will have dry and warm emergency lodging that keeps dry while you are heating up.

Moreover, it is a waterproof and unique product that everybody will surely like.

3. Tact Bivy Compact Ultra Lightweight Sleeping Bag

Tact Bivvy Compact Ultra Lightweight Sleeping Bag
2,008 Reviews
Tact Bivvy Compact Ultra Lightweight Sleeping Bag
  • ULTRA LIGHTWEIGHT COMPACT SLEEPING BAG: Made out of ultra-lightweight HeatEcho reflective polyester film, this thermal survival blanket sleeping bag weighs just 4.8 ounces. It also compresses into a tiny oversized stuff sack, so you can reuse and carry our emergency sleeping bags with your survival kit everywhere you go. Use as a sleeping bag liner and raise your body temperature by 20°!
  • MADE FOR EMERGENCIES: The bright orange color of this light weight sleeping bag cover helps rescuers identify you with ease. Plus, the HeatEcho material reflects 90% of your body's heat back to you, making it an essential survival tool and addition to your bug out bag, emergency shelter, camping gear or car emergency kit.
  • INCREDIBLY DURABLE: 100% WATERPROOF: For its weight and thinness, these sleeping bags will surprise you with their strength. Small enough to fit in the palm of your hand, but large enough for a 7-foot person. The material ensures these sacks are tear-resistant, windproof, AND waterproof. Plus, these emergency Tact Bivvy bags feature reinforced taped seams, creating weather-resistant barriers between you and the frigid cold.
  • MULTI-PURPOSE: The drawstring is actually para-tinder paracord, so you can use it to tie down your gear or expose the tinder cord and use it as a fire starter! On the end of the drawstring you will find a 120-decibel whistle for emergencies, and a carabiner so you can clip it to your bag or pack. Be prepared don't forget to add this emergency outdoor thermal sleeping bag on your emergency kit.
  • PREPARING MADE EASY: Survival Frog has over 10 years of experience in the industry and is one of the largest and most trusted sources for survival and preparedness products online. We believe it is everyone's responsibility to prepare for potential threats with at least a 72-hour supply of the essentials.

This product is considered a useful and refined emergency sleeping bag. The Tact Bivvy from Survival Frog is ideal for very infrequent use.

One of the best things that set this bivy apart from others is that it’s handy for escapades. However, the Tact Bivvy is more like an emergency blanket, not a bivy.

​On the other hand, this ultralight bivy sack is loaded with great features that you’ll surely love. It is the main reason why this product is included in this ultimate sack reviews.

Incredibly Durable

For its thinness and weight, this sleeping bag from Survival Frog will shock you with its strength. The materials used in this product is waterproof, tear-resistant, and windproof.

In addition to that, this bivy bag is equipped with taped seams, which makes a barrier between the frigid cold and you.

Designed for Emergencies

Its bright orange color of this sleeping bag helps rescuers determine you easily. Moreover, the HeatEcho materials used in this bag reflects 90 percent of your body’s heat hind to you, which makes it an important survival tool. It is also a nice addition to your camping gear or emergency shelter.

Easy to Use 

This Tact Bivvy sleeping bag is easy to use and store at the same time. All you have to do is unpack this lightweight and compact sleeping bag from the sack and then slide inside.

​This bivy bag is small especially when on the stuff sack. With that said, you can easily store this item anywhere.

What We Liked

  • ​Durable
  • ​Waterproof
  • ​Easy to use
  • ​Convenient to store
  • ​Ultra lightweight
  • ​It is specifically designed for emergencies

What We Didn’t Like

  • ​No zipper
  • ​Can be destroyed easily depending on the condition and environment
  • ​It will snare water vapor
  • ​Not breathable
  • ​The color is too bright

Customer Reviews

The majority of Tact Bivvy customers loved how these sleeping bags were created. They don’t have any complaint when it comes to comfort, quality, and protection.

Nevertheless, some of the customers complain about its too bright color.

Final Verdict

Undeniably, the Tact Bivvy is a perfect option for emergency and shelter weather protection.

All in all, this sleeping bag is a product that is worth getting. Also, we highly recommend this for hikers, mountaineers, or campers who are looking for a lightweight sleeping bag.

4. Woodland Camouflage Waterproof Bivy Cover

Tennier Woodland Camouflage Waterproof Bivy Cover
669 Reviews
Tennier Woodland Camouflage Waterproof Bivy Cover
  • NSN: 8465-01-416-8517
  • Waterproof
  • Woodland Camouflage
  • Made in the USA

This waterproof bivy the forth if of the most highly-valued bivy sacks on the market today. The bivy cover made with moisture-vapor-permeable and waterproof materials. Moreover, the seams are all heat sealed.

Another thing that made Woodland Camouflage Waterproof Bivy Cover is that it performs a decent job of protecting its user from bad weather.

Weather Resistant

This bivy cover does an excellent job in making its users dry and warm, even in times of blustering snow and rain. On the other hand, its opus material has waterproof treatment and taped seams, making its shield more durable against any elements.


When it comes to ventilation, this bivy cover is also top-notch. It has lots of different configurations for venting setup.

Since its ventilation is above average, you can button and zip it completely to keep weather and wind out.


​Regarding comfort, you can also count on this waterproof sleeping bag cover. This bag offers plenty of room for your stuff and yourself. With that said you can toss as well as turn around without being constrained.

What We Liked

  • ​Warm
  • ​Weather-resistant
  • ​Incredibly durable
  • ​Offers maximum comfort
  • ​Made of premium-quality materials

What We Didn’t Like

  • ​Doesn’t come with a stuff sack
  • ​Heavy
  • ​Not ideal for recreational activities
  • ​Expensive
  • ​Don’t have a bug screen or pole.

Customer Reviews

Lots of customers praised the spacious interior of this best bivy sacks. Aside from that, they also appreciate the comfort it offers to them.

Even so, according to some users, this bivy sack is great for hiking and other outdoor activities.

Final Verdict

This manufacturer of this item gives up weight savings to build a heavy bivy. Even though it doesn’t come with bug screen or poles, it still the most considerable product in this list.

Also, this bag is specifically designed to last for a couple of years. If you are looking for a bivy sack that you could convey from generation to generation, this one is for you.

To sum it all, this bivy sock can offer maximum warmth as well as durability wherever you want to go.

5. Life Bivy Emergency Sleeping Bag Thermal Bivvy – Best Cheap Bivy Sacks

Go Time Gear Life Bivy
3,963 Reviews
Go Time Gear Life Bivy
  • STAY WARM AND ALIVE IN EXTREME CONDITIONS: The Life Bivy emergency sleeping bag serves as your emergency blanket, survival shelter, and emergency bivy sack all-in-one. Engineered for emergencies and survival, you have the ability to call for help using the 120-decibel survival whistle and the bright orange color alerts rescuers. Perfect for your bug out bag, survival gear, car survival kit, or bug out gear, the Life Bivy is an essential tool to ensure you stay alive in an emergency
  • PATENT PENDING PARA-SYNCH TECHNOLOGY PARACORD DRAWSTRING & SURVIVAL WHISTLE: The 120-decibel emergency whistle cuts through wind and trees alerting rescuers up to 1-mile away. The 550lb nylon core patent pending Para-Synch Technology drawstring can be used to secure or repair gear, build an emergency shelter, or start a fire. In a survival situation, your tools and skills are the difference between life and death. The Life Bivy's multi-functional stuff sack stacks the deck in your favor
  • EXTRA-THICK TEAR AND PUNCTURE RESISTANT MATERIAL: Your ultra-lightweight emergency bivvy survival sleeping bag is constructed of 26um extra-thick mylar material with a tear and puncture resistant coating so it stands up to extreme conditions. Your Life Bivy is durable enough for repeated uses so it can be folded up and placed back inside the waterproof Nylon stuff sack for your next adventure
  • PROTECTION AGAINST RAIN, WIND, & SNOW: Your waterproof and windproof survival bivvy bag is made of extra-thick tear & puncture resistant polyethylene material with sealed seams locking out harsh weather to cover & protect you in the worst conditions. The reflective interior of the Life Bivy emergency sleeping bag protects you from hypothermia and keeps you warm by reflecting 90% of your body heat back to you
  • ULTRA LIGHTWEIGHT & COMPACT: Small enough to fit in the palm of your hand and weighing just 4.1 ounces, the Life Bivy survival sleeping bag comes rolled up inside a durable waterproof stuff sack so you can store it nearly anywhere. Toss Life Bivvies in your hiking pack, go bag, bug out supplies, and glove box so whether you’re trapped in your car during a winter storm or forced to spend an unplanned night outside, you’re ready for the harshest conditions Mother Nature throws at you

Regarding functions, size, and weight the Life Bivy Emergency Bag provides the best features. It also has several functions that will keep your family and you secure and safe.

Moreover, this bivy sacks will keep you insulated especially when you’re stuck in the nowhere and not capable of reaching your campsite and home in time.

 This product stands out because it’s created with lots of reliable and great features.


Whether you’re stuck in howling wind, relentless snow, or pounding rain, this bivy sacks can help you a lot. The Life Bivy offers you maximum protection against bad conditions so that you will stay alive, warm, and dry.  

Furthermore, this best bivy sack is made of puncture and tear resistant materials. It also comes with a waterproof and durable stuff sack.


This sleeping bag comes with additional tools that can help you a lot when there’s an emergency. Its drawstring can be utilized to repair gear and tie down.

​Moreover, it comes with a tremendous 120dB whistle that you can use when you are out of sight or stranded.


The Life Bivy weighed 4.1oz and stored inside a solid stuff sack. You can place it in your camping gear, trunk, or backpack.

​However, it is a perfect addition to your hiking pack, vehicle emergency kit, or survival kit. Because nothing blows the coziness of knowing you are ready for any emergency.

What We Like

  • ​Waterproof
  • ​Windproof
  • ​Durable
  • ​It can withstand several uses
  • ​It features puncture and tear-resistant materials
  • ​Light in weight
  • Compact

What We Didn’t Like

  • ​Too much condensation
  • ​Provides limited protection
  • ​Too bright color
  • ​It is not easy to stuff
  • ​It has no zipper

Customer Reviews

Many consumers praised the product’s reliability and usefulness. On the other hand, some customers keep citing the Life Bivy Sleeping Bag’s safety and comfort.

Final Verdict

Overall Life Bivy Emergency Sleeping bag is a bivy sack that is worth getting. This will protect from bugs and severe weather conditions. It is completely waterproof and provides a great combination of substance and style.            

​With its great features, rest assured you will have a comfortable, safe, and secure adventure.

Buying Guide

Outing Duration

Without a doubt, it is one of the significant factors that you need to consider when buying a bivy sack is how you’ll utilize it.

Will you utilize it on overnight hikes or mountaineering excursions? For camping or on long-distance treks?

​Once you’ve determined how and when you’ll use it rest assured you will end up purchasing the best one.

More: Check The Best Hydration Bladder here


Keep in mind that the weight we’re talking about isn’t only the sack itself. But the additional weight that it would contribute to the camper or hiker’s backpack.

When buying great outdoor equipment, weight is an important factor. If the place where you’re going has an even landscape that has no altitudes to be climbed, then you’ll need weightier bivy sacks. 

However, some bivy bags features a pole and hoop. These additional features will upsurge the sack’s overall weight.

​When it comes to a lightweight bivy, there are lots of options where you can choose from. Thus, it’s better to spend some of your time checking the description of the product you’re planning to buy.

More: The Best Folding Chairs For Camping and Hiking

Condensation and Waterproofing Factors

How well it endures outside condensation and how waterproof it is, are also important factors that you need to consider when buying bivy sacks.

If a product isn’t waterproof, it’s absolutely useless. Keep in mind that being water-resistant and waterproof aren’t alike. Some bivy sacks are water-resistant while others are waterproof.

When purchasing a bivy, you should also check the product’s condensation resistance.

It is important in guaranteeing that users don’t get too cold in the outside while nestling or resting inside a sack.

​When buying a bivy tent, make sure that you review the condensation resistance factor as well. This is essential in ensuring that the user does not get too cold in the outdoors while sleeping or nestling inside such a sack.

More: Best Leatherman Multi Tools

Insect Protection 

Since you’re staying outdoors, it is best to invest in bivy sacks that comes with insect protection.

​Sacks that have insect protection are simpler to pack, more lightweight, and more breathable. However, this bivy doesn’t feature lots of weather protection.


The kind of materials used in making bivy sacks vary greatly. However, one of the most important things that you need to think through is the durability.

​Most likely, you will be sleeping on the ground, so, you need to make sure that your chosen bivy sack is made of durable materials.

More: Leatherman Rebar Review


Undeniably, comfort is essential for outdoor equipment. Even so, it is more important especially if you tend to use your bivy sack as your shelter.

​Either way, some of the factors that will determine how comfortable a bivy include insect protection, roominess, ease of use, and additional features like gear pockets as well as straps for a sleeping pad.


Even if your chosen bivy sack is waterproof, but it doesn’t have good ventilation, then it’s worthless.

​With that said, it’s better to look for a bivy sack that offers a great combination of waterproof and ventilation. Also, look for bivy socks that are equipped with a zipper, as such bivies have good ventilation.

More: Check Best Camping Table Here


Bivy Sacks vs. Tent: Who Performs Better?

Bivy sacks, unlike tents, can be positioned on harsher landscapes, rocks, or inside caves. Wherein, tents can’t handle these areas. Bivy sacks, on the other hand, can offer you greater functionality and versatility.

Moreover, a bivy sack is more inexpensive compared to a tent. Notwithstanding its cost, bivy sacks can offer excellent weather protection, warmth, and comfort.

​Normally, tents aren’t adaptable for either terrain or weather instances, especially when compared to a bivy sack. Plus, bivy sacks are much easier to use and setup.

How Does Air Flow Inside a Bivy Sack?

Waterproof or breathable laminates like Gore-Tex cloth make it probable for vapor bent by the body heat to be pressed over the fabric. 

Even so, this works better when a humid and warm body is resting somewhere dry and cool. During raining circumstances, your bivy sack must have zippers and enough overlapping material, so it’s unlikely you’ll need to zip them closed totally.

​Nevertheless, physically venting a flap or zipper helps uphold acceptable inner humidity level.

​Why Would I Utilize A Bivy Sack As An Alternative To A Tent?

The majority of outdoor enthusiasts that utilizes a bivy sack instead of a tent prefer the compressibility and lightweight of bivy sacks.

Bivy sacks are made to be used and carry with ease and to be smaller. These sacks can keep you from any weather condition and warm.

Even though bivy sacks are ordinary among outdoor enthusiasts, some backpackers prefer to use a lightweight tent.

On the other hand, when comparing a bivy sack to a tent, you will notice that it is more compressible and easier to set up.

​Thus, if you are looking for a shelter that is good for one person and protects you from any outdoor element, then a bivy sack is for you.

Where Can I Purchase The Outdoor Research Alpine Bivy?  

You can buy this best bivy sack at Amazon. Or, you can visit the official website of Outdoor Research or any outdoor store near to you. 


If you want to have the best bivy sack, then we commend you to invest in Outdoor Research Alpine Bivy. It offers a great combination of comfort and durability.

It’s also top-notch when it comes to effectiveness and quality. Most importantly, it can withstand even the harshest weather condition.

For hikers, mountaineers, campers, investing in a high-quality and steadfast bivy back is not a bad idea. A bivy sack is useful and can offer you a comfortable shelter especially if you’re stuck in nowhere. Aside from that, it is also versatile, quite affordable, safe, as well as secure. 

Hopefully, this content helps you a lot in choosing the best bivy sack that suits your personal and outdoor needs.

1 thought on “Best Bivy Sacks: Reviews and Buying Guide”

Leave a Comment