Hyperlite Mountain Gear Southwest 55 Backpack vs Osprey Exos 58
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 →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 Osprey Exos 58: which should you buy?
If saving weight is your priority, the Hyperlite Mountain Gear Southwest 55 Backpack wins — at 850 g it is 570 g (40%) lighter than the Osprey Exos 58 (1,420 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.