Top 8 Best Military Bivy Sacks in 2023

Imagine you are going for a walk in the woods, and suddenly a storm appears. There’s no shelter, and you have nowhere to hide. It’s already dark, and it’s raining so hard you can’t find your way back…so you have to wait until the rain stops or until the sun rises.

What do you do then? You use your bivy sack and spend the night knowing you are safe!

Mountaineers, soldiers, and scouts have been using military bivvy sacks for years.

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Military Bivy Sacks

These items are easy to set up, highly portable, and lightweight, and they help you move fast and stay protected from harsh elements. Nowadays, modern materials, such as Gore-tex, for example, have made these units very reliable and, most importantly, breathable.

Before purchasing a military bivy, there are a number of important factors to take into account, and now we are here to assist you! We have compiled the top items available online, and we really hope you will find our reviews helpful in selecting the finest polyester, mylar, or gore-tex bivy for you. Let’s get going!

Survival of the Fittest Bivy Sack

The Survival of the Fittest bivy is a reusable sleeping bag that offers you an emergency shelter designed to keep you warm and safe even in the most extreme circumstances. This is a heavy-duty product that is ideal for cold weather and is the perfect addition to your camping gear.

This sleeping bag is windproof and water-resistant, so it can withstand bad weather, including rain, snow, and strong winds. It is also constructed from Mylar, so it is very durable. This is one of the best bivy sacks on the market designed for the most rugged environments.

Now, if you were impressed with how lightweight our first suggestion was, wait until you hear the size of this one. It weighs only 4.8 ounces and, when rolled, can also fit in the palm of your hand (which is the whole purpose of bivvy bags).

The greatest part is that you get a paracord drawstring and high-decibel emergency whistle that will help you call for help if you get lost in the woods, for example.

Frog and Co. Tact Bivy 2.0

This is another lightweight bivouac sack with nice zipper closure, high levels of water resistance, and a rugged design. It is made of a polyester film, which can reflect 90 percent of your body heat back to you. This fact only makes this bivy sack the perfect survival tool to add to your bug-out bag.

With the right sleeping bag liner and this high-quality bivy sack, you can raise your body temperature by 20°. Adventures don’t have to be dangerous!

This bivy sack weighs 4.8 ounces, and it comes with a stuff sack that is a bit oversized for you to be able to carry other items inside. The green color of the bivy sack is smartly chosen to help you blend with your surroundings, and since the bivy itself is made of quality polyester, it is incredibly durable and will surprise you with its strength.

What we liked the most about this suggestion was the drawstring that was actually a para-tinder paracord. We loved it since you could use it to tie down your gear or even start a fire by exposing the tinder cord. The bivy sack also comes with a 120-decibel whistle and a carabiner you could clip to your backpack.

Primacare HB-10 Emergency Thermal Blanket

Here’s a suggestion that’s a bit different since it is not exactly a bivy bag but more of an emergency blanket. If you want to get a great camping experience and feel safe no matter the weather, this thermal Primacare HB thermal blanket is one of the units you must definitely consider buying.

This is actually a 10-pack, so you’ll get 10 thermal blankets that are waterproof and provide excellent insulation. Each item is made of foil and Mylar, and that means it reflects your body heat or deflects heat from the sun. How cool is that?

The Primacare HB mylar blanket is 84″ wide and 52″ long, and that was one of the reasons we liked it so much. It provided enough space for us to feel comfortable while we were testing it, and it is also easy to clean once you’ve used it. This unit is undoubtedly a must-have for your first aid kit.

Tennier Woodland Waterproof Bivy Cover

This Tennier sleeping bag cover will be appealing to you if you appreciate the look of wild camouflage. If you use it while in the woods, no wild animal will see you since you’ll blend in with the surrounding trees. It provides good weather protection.

This bivy cover is made of Gore-Tex, a synthetic waterproof fabric, and is manufactured in the USA. It is completely waterproof, and you won’t have to be afraid of rain, snow, or any other weather conditions. It is ideal for your camping trip, and you can easily carry it with you since it is not that heavy and won’t take up a lot of space in your bag or trunk.

This Tennier bivy cover is considered to be one of the great bivy sacks since it offers military-grade warmth. It is suitable for winter camping, and even though it may seem a bit expensive, we assure you, it is worth the money! All seams are sealed, and the overall weight of the unit is 3 pounds. Its dimensions, on the other hand, are 81-83″ Long, 34-36″ Wide (top), 27-29″ Wide (foot).

S.O.L. Survive Outdoors Reflective Escape Bivvy

The Escape bivy is an excellent survival sleeping bag that prevents heat loss and keeps you warm by offering 70% of heat reflectivity. Its construction is very durable since it is made of hard-wearing fabric that is quiet and will not shred to pieces if punctured.

This Survive Outdoors Longer bivy blanket has a weight of 8.5 ounces, which is somewhat heavier than some of our other suggestions of bivy sacks, but it is just as sturdy and efficient. It measures 84 x 31 inches and has a drawstring hood and taped seams that offer excellent waterproofness.

We found the breathable fabric this bivy sack is made of to be a great advantage since it lets consideration escape while keeping snow, rain, and wind out. The size zip is also well-made.

The bottom line is, this bivy sack can withstand heavy use as an emergency sleep system or a standalone sleeping bag. It is the perfect carry sack to take with you wherever you go!

RAB Storm Spartan Bivi

This next bivy sack is designed for trekking and general outdoor use. You can take it with you while fishing, hunting, or simply going for a walk in nature; after all, you never know how the weather conditions can change. It is made of 70d Hyperlite Storm fabric and, like most bivys, has room for one person only.

The RAB Storm Spartan bivy sack weighs 664 grams or 23oz, and you can easily carry it wherever you go. It is not as compact as our first suggestions, but it has many other excellent characteristics, so we were just as impressed with it as we were with the other two.

This bivy sack offers excellent breathability, yet it keeps you warm and reflects your body heat to keep you safe even in the harshest of environments. Besides being well-ventilated, this bivy sack is also well-built.

You get to choose from two different colors, which is also a nice thing the manufacturer has thought about. The dimensions of this bivy sack are 31.5 in (W) x 92.5 in (L) x 11.8in (H)

Tennier Military Modular Sleep System

Now, this is an interesting suggestion! The Tennier military modular sleep system includes four different items- ICW bag, Patrol bag, sack, and a gore-tex bivy cover. All of the parts are manufactured in the USA, and since this is also a military issue used by the US army, you can be sure that it can definitely save your life even in cold temperatures.

The Patrol bag has a reversible double-pull slider that provides excellent ventilation. It is rated for temperatures 50 to 30°, and it also features a non-locking slide fastener, a draft flap, and an adjustable hood.

The intermediate cold weather sleeping bag, on the other hand, has an anatomically designed foot box, sewn insulation, and a quilted chest collar that will stop the air from drafting up and down the hood. It is suitable for climates between 30 to -10°.

We also liked the bivy cover for it is very durable, and when you combine it with the ICW and Petrol bags, the whole system becomes suitable for climates down to -50°. You’ll also need proper clothing, of course, but the fact that it is compressible to one cubic foot is very impressive.

The nylon webbing straps are easily adjusted with the help of ladder lock buckles, and the whole circumference of the bag is sewn with reinforcement webbing.

TACT Bivy 2.0

When it comes to bivy sacks, our first suggestion scores high in all categories-reliability, convenience, and price.

One of the reasons why we loved the TACT Bivvy 2.0 so much was the ultralightweight material it uses called Mylar. This material was designed by NASA to help keep sensitive materials, and especially astronauts, warm in sub-zero temperatures.

This bivy tent is not like most other bivy sleeping bags available on the market. It reflects ninety percent of your body heat back to you, so you can use it in all types of emergency situations where the temperature has dropped to dangerously low levels.

Since we are here to show you the best bivy sacks, we just had to include this bivy sack as number one on our list.

This bivy tent weighs only 6.2 ounces, and when you stuff it inside the stuff sack it comes with, it can literally fit in the palm of your hand. Isn’t that so cool?

This item offers excellent weather protection, and you can take it with you wherever you go. It doesn’t matter if you go fishing, camping, or hunting, this bivy can save your life.

What is a Bivy Sack?

Bivy sacks, also called bivouac bags or sacks, are single-person tents used mainly by mountaineers and soldiers, which are distilled down to only the vital components. Basically, bivy sacks are portable waterproof sleeping bags that can are designed to protect you from snow and rain.

When looking for a high-quality sleeping bag, there are several important factors to take into account. A bug net, a short pole system, extra zips, whistles, and other survival features and accessories are included in some versions. However, since the fabric will ultimately keep you warm and secure, it is the most crucial factor to take into account.

Since a bivy is lightweight and portable, you can easily carry it around wherever you go, and it won’t take up much space in your bag or car. It is super convenient because it can be used in places that would not be suitable for a traditional tent. With a quality bivy sack, you won’t sacrifice your comfort, but you WILL be protected!

Wrap Up

Military bivyys are an essential part of your survival gear. Some models come with bug netting, improved air circulation, whistles, and other features, so you need to look at the characteristics of each item carefully before you decide on one.

A bivy bag can literally save your life, so we really hope that you have found the perfect product for you amongst our reviews.

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