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HydraPak Stash 1L vs OutdoorVitals Ultralight Compression Dry Bag 13L

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

HydraPak Stash 1L is the lighter option — 10 g lighter than the OutdoorVitals Ultralight Compression Dry Bag 13L (23% less weight). If grams matter to you, that is the one to beat.
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Spec HydraPak Stash 1L OutdoorVitals Ultralight Compression Dry Bag 13L
Weight 33 g · 0.033 kg · 0.07 lb 43 g · 0.043 kg · 0.09 lb
Brand HydraPak OutdoorVitals
Category Miscellaneous Miscellaneous
HydraPak Stash 1L
33 g

Collapsible insulated water bottle. Folds flat.

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OutdoorVitals Ultralight Compression Dry Bag 13L
43 g

13L capacity compression dry bag at 1.5 oz (43g) with 30D ripstop sil/PU nylon for efficient gear organization.

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HydraPak Stash 1L vs OutdoorVitals Ultralight Compression Dry Bag 13L: which should you buy?

If saving weight is your priority, the HydraPak Stash 1L wins — at 33 g it is 10 g (23%) lighter than the OutdoorVitals Ultralight Compression Dry Bag 13L (43 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