Hyperlite Mountain Gear Southwest 55 Backpack vs Mountain Hardwear Alakazam 45L ALUULA Graflyte
Weight and specs compared for 2026 — and which one to choose.
Robust ultralight pack with Dyneema Composite Hybrid fabric and two aluminum stays. Ideal for technical terrain and variable weather conditions.
Full details →Spring 2026 framed ultralight pack in new ALUULA fabric; one of first mainstream packs with this material
Full details →HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
Hyperlite Mountain Gear Southwest 55 Backpack vs Mountain Hardwear Alakazam 45L ALUULA Graflyte: which should you buy?
If saving weight is your priority, the Mountain Hardwear Alakazam 45L ALUULA Graflyte wins — at 820 g it is 30 g (4%) lighter than the Hyperlite Mountain Gear Southwest 55 Backpack (850 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.