ACR Electronics Bivy Stick vs SOL Thermal Bivvy
Weight and specs compared for 2026 — and which one to choose.
Compact two-way satellite communicator with SOS, GPS tracking and app-based messaging over the global Iridium network.
Reusable emergency bivvy. Warmer than mylar alternatives.
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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ACR Electronics Bivy Stick vs SOL Thermal Bivvy: which should you buy?
If saving weight is your priority, the ACR Electronics Bivy Stick wins — at 100 g it is 70 g (41%) 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.