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SOL Escape Bivvy vs SOL Thermal Bivvy

Weight and specs compared for 2026 — and which one to choose.

SOL Escape Bivvy is the lighter option — 28 g lighter than the SOL Thermal Bivvy (16% less weight). If grams matter to you, that is the one to beat.
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Spec SOL Escape Bivvy SOL Thermal Bivvy
Weight 142 g · 0.142 kg · 0.31 lb 170 g · 0.170 kg · 0.37 lb
Brand SOL SOL
Category Safety Safety
SOL Escape Bivvy
142 g

Breathable emergency bivvy bag. Reflects 70% of body heat.

See it in your base weight → Full details →
SOL Thermal Bivvy
170 g

Reusable emergency bivvy. Warmer than mylar alternatives.

See it in your base weight → Full details →

Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.

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SOL Escape Bivvy vs SOL Thermal Bivvy: which should you buy?

If saving weight is your priority, the SOL Escape Bivvy wins — at 142 g it is 28 g (16%) lighter than the SOL Thermal Bivvy (170 g). That said, the heavier option may justify the extra grams with more capacity, durability or comfort, so weigh the trade-off against how you'll use it.

See where both rank against everything else in this category on the lightest safety page, or browse the full gear weight database.

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