Survival Frog Tact Bivvy 2.0 Emergency Compact Sleeping Bag

Last updated date: October 30, 2020

DWYM Score

9.5

Survival Frog Tact Bivvy 2.0 Emergency Compact Sleeping Bag

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We looked at the top Bivys and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Bivy you should buy.

Editor's Note October 30, 2020:
Checkout The Best Bivy for a detailed review of all the top bivys.

Overall Take

While the bivy is extremely lightweight, the sleeping bag is puncture resistant, windproof and waterproof. The bags have reinforced taped seams, offering an extra layer of protection from cold temperatures. The drawstring also doubles as a para-tinder paracord, and a 120-decibel emergency whistle is also included.


In our analysis of 12 expert reviews, the Survival Frog Survival Frog Tact Bivvy 2.0 Emergency Compact Sleeping Bag placed 2nd when we looked at the top 6 products in the category. For the full ranking, see below.

From The Manufacturer

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 this emergency sleeping bag with your survival kit everywhere you go. Use as a sleeping bag liner and raise your body temperature by 20°!

Expert Reviews

Expert Summarized Score

7.5
2 expert reviews

User Summarized Score

9.2
1,038 user reviews

What experts liked

This sleeping bag works well to preserve your body heat as well as a guard against the wind and water.
- BestReviews
The Tact bivy is by far the most lightweight sleeping bag out. It's 100% waterproof and durable. You can choose between green or orange and is lined with thermal space blanket material to reflect 90% of your body heat back to you
- Tent.net

What experts didn't like

Condensation builds up so be aware. Also, some report that the material is really thin and rips easily.
- BestReviews

An Overview On Bivys

Originally developed as a one-person shelter to protect mountaineers and climbers from rain and snow during multi-day ascents, the bivouac sack — or bivy sack — now has a wider range of uses. A traditional bivy sack, made from a waterproof, tear-resistant fabric, performs two basic functions: to increase the user’s body temperate and keep them dry.

Bivies — reminiscent of an ultra-lightweight sleeping bag or extra-large rain jacket shell — have all have a built-in head opening and come with features like draw strings around the head opening to seal out moisture, full-length zippers and factory-sealed seams for extra warmth. The outer shell of the sacks are available in many different colors, including bright, attention-grabbing hues like red and yellow to improve the user’s visibility to rescue crews.

The products, which are stored in a compact bag, are ideal for emergency preparedness, backcountry excursions, long-distance biking trips, train running and winter camping. The primitive shelters are ideal for sleeping in technical terrain, where ledges are too cramped for a tent, but can also be used as a poncho, blanket, sleeping bag liner, ground cover and more. Some bivy sacks are also equipped with a whistle and a nylon core draw string that can used to secure or repair gear, making those options great for emergency situations. Because bivies can be reused, easily stored and often weigh just a few ounces, they’re convenient for travel and outdoor adventure.

What’s the difference between a bivy sack and a bivy shelter? The latter is a low-rise tent that includes mesh panels attached to the head opening or hoops to keep the fabric off your face (think: a fancy bivy sack).

The Bivy Buying Guide

  • Depending on the product, bivy sacks are designed to help users retain up to 90% of their body heat.
  • If you’re a tent camper who wants to downsize to a no-fuss shelter, a bivy sack could be the answer; since they require no setup, pitching or breakdown, they’re great for adventurers who want to maximize their time with a fast overnight.
  • Bivies are great alternatives to a tents in warmer temperatures (for example, above 50).
  • If you plan to use your bivy sack for camping, increase your comfort by: placing a bottle filled with hot water in the core zone (your crotch or arm pit area) for extra warmth, use a sleeping pad underneath for extra cushion and pull the drawstring around the opening snugly around your head to avoid breathing into the bivy and to seal out moisture.