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Petzl Grigri+ vs SOL Thermal Bivvy

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

SOL Thermal Bivvy is the lighter option — 30 g lighter than the Petzl Grigri+ (15% less weight). If grams matter to you, that is the one to beat.
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Spec Petzl Grigri+ SOL Thermal Bivvy
Weight 200 g · 0.200 kg · 0.44 lb 170 g · 0.170 kg · 0.37 lb
Brand Petzl SOL
Category Safety Safety
Petzl Grigri+
200 g

Assisted-braking belay device for via ferrata and climbing.

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SOL Thermal Bivvy
170 g

Reusable emergency bivvy. Warmer than mylar alternatives.

Full details →

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Petzl Grigri+ vs SOL Thermal Bivvy: which should you buy?

If saving weight is your priority, the SOL Thermal Bivvy wins — at 170 g it is 30 g (15%) lighter than the Petzl Grigri+ (200 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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