Tact Bivvy 2.0 Review: The Survival Sleeping Bag That Fits in Your Pocket

Hypothermia doesn't wait for winter. A turned ankle on an afternoon hike, a wrong turn, a storm that rolls in early — and suddenly you're spending a 40-degree night in the open. The people who walk out of those nights aren't tougher; they're the ones who had a way to stay warm. The Tact Bivvy 2.0 is that way, and it's small enough that there's no excuse not to carry it.

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It traps the heat your body is already making

The Tact Bivvy's HeatEcho material reflects up to 90% of your body heat back at you — so instead of bleeding warmth into the cold ground and air, you stay in your own little pocket of survivable temperature. It's windproof and waterproof, which is exactly the combination that turns a miserable, dangerous night into one you simply endure and walk away from.

Small enough that it's actually with you

The best survival gear is the gear you have on you — and this is the whole point of the Bivvy. It packs down to about the size of a soda can and weighs almost nothing, so it lives in your daypack, glovebox, hunting kit, and bug-out bag without you ever noticing the weight. Gear that stays home saves no one.

The verdict: Field-Tested

For the price of a couple tanks of gas, you get a genuine hedge against the one outdoor emergency most likely to actually kill you. Buy a few — one for every pack and vehicle — and never think about it again until the day it matters.

Check today's price on the Tact Bivvy 2.0 →