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Montbell Thunder Pass Hat vs REI Lightweight Stuff Sack

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

REI Lightweight Stuff Sack is the lighter option — 35 g lighter than the Montbell Thunder Pass Hat (64% less weight). If grams matter to you, that is the one to beat.
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Spec Montbell Thunder Pass Hat REI Lightweight Stuff Sack
Weight 55 g · 0.055 kg · 0.12 lb 20 g · 0.020 kg · 0.04 lb
Brand Montbell REI
Category Miscellaneous Miscellaneous
Montbell Thunder Pass Hat
55 g

Ultralight packable sun hat with Gore-Tex brim.

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REI Lightweight Stuff Sack
20 g

Budget-friendly ultralight stuff sack for pack organization. Only 0.7 oz.

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Montbell Thunder Pass Hat vs REI Lightweight Stuff Sack: which should you buy?

If saving weight is your priority, the REI Lightweight Stuff Sack wins — at 20 g it is 35 g (64%) lighter than the Montbell Thunder Pass Hat (55 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 miscellaneous page, or browse the full gear weight database.

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