Hyperlite Mountain Gear Prism 40L vs Zpacks Arc Haul Ultra 60L
Weight and specs compared for 2026 — and which one to choose.
Technical alpine pack in DCH150 Dyneema with crampon pouch, ice tool carry, and removable lid. Load capacity up to 22kg.
Full details →Ultralight framed Dyneema pack. One of the lightest framed packs.
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Hyperlite Mountain Gear Prism 40L vs Zpacks Arc Haul Ultra 60L: which should you buy?
If saving weight is your priority, the Zpacks Arc Haul Ultra 60L wins — at 510 g it is 317 g (38%) lighter than the Hyperlite Mountain Gear Prism 40L (827 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 backpack page, or browse the full gear weight database.