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HydraPak Stash 1L vs Montbell U.L. Shell Mittens

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

Montbell U.L. Shell Mittens is the lighter option — 24 g lighter than the HydraPak Stash 1L (73% less weight). If grams matter to you, that is the one to beat.
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Spec HydraPak Stash 1L Montbell U.L. Shell Mittens
Weight 33 g · 0.033 kg · 0.07 lb 9 g · 0.009 kg · 0.02 lb
Brand HydraPak Montbell
Category Miscellaneous Miscellaneous
HydraPak Stash 1L
33 g

Collapsible insulated water bottle. Folds flat.

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Montbell U.L. Shell Mittens
9 g

Ultra-thin ultra-light shell mittens. Minimal weight option for backup hand protection.

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HydraPak Stash 1L vs Montbell U.L. Shell Mittens: which should you buy?

If saving weight is your priority, the Montbell U.L. Shell Mittens wins — at 9 g it is 24 g (73%) lighter than the HydraPak Stash 1L (33 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.

More miscellaneous comparisons