Hyperlite Mountain Gear Unbound 40 vs Mountain Hardwear Alakazam 45L ALUULA Graflyte
Weight and specs compared for 2026 — and which one to choose.
40L Dyneema Composite Hybrid pack with internal frame and waterproof roll-top closure. Built for alpine and storm-prone conditions.
Spring 2026 framed ultralight pack in new ALUULA fabric; one of first mainstream packs with this material
Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.
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Hyperlite Mountain Gear Unbound 40 vs Mountain Hardwear Alakazam 45L ALUULA Graflyte: which should you buy?
The listed weights alone are not enough to choose between these products. Confirm the size, included parts and weight basis against each source; choose equipment for the function and fit you need.
See where both rank against everything else in this category on the lightest backpack page, or browse the full gear weight database.