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Outdoor Research ActiveIce Sun Cap vs REI Lightweight Stuff Sack

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

REI Lightweight Stuff Sack is the lighter option — 70 g lighter than the Outdoor Research ActiveIce Sun Cap (78% less weight). If grams matter to you, that is the one to beat.
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Spec Outdoor Research ActiveIce Sun Cap REI Lightweight Stuff Sack
Weight 90 g · 0.090 kg · 0.20 lb 20 g · 0.020 kg · 0.04 lb
Brand Outdoor Research REI
Category Miscellaneous Miscellaneous
Outdoor Research ActiveIce Sun Cap
90 g

Sun protective running cap with neck gaiter.

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REI Lightweight Stuff Sack
20 g

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

Full details →

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Outdoor Research ActiveIce Sun Cap 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 70 g (78%) lighter than the Outdoor Research ActiveIce Sun Cap (90 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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