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HydraPak Stash 1L vs Sunday Afternoons Ultra Adventure Hat
Weight and specs compared for 2026 — and which one to choose.
HydraPak Stash 1L is the lighter option — 38 g lighter than the Sunday Afternoons Ultra Adventure Hat (54% less weight). If grams matter to you, that is the one to beat.
Sunday Afternoons Ultra Adventure Hat
71 g
Lightest sun hat option at 2.5 ounces. Breathable and packable for desert and alpine hiking.
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HydraPak Stash 1L vs Sunday Afternoons Ultra Adventure Hat: which should you buy?
If saving weight is your priority, the HydraPak Stash 1L wins — at 33 g it is 38 g (54%) lighter than the Sunday Afternoons Ultra Adventure Hat (71 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.