Aarn Mountain Magic 50 Pro vs Hyperlite Mountain Gear Southwest 40L Backpack
Weight and specs compared for 2026 — and which one to choose.
Body-balance 50L pack in 70D Robic Gridstop UHMWPE with U-Flow harness and removable front balance pockets for comfort.
Check price Full details →Fully waterproof Dyneema Composite Hybrid pack with aluminum stays and foam back panel. Built for off-trail use in harsh conditions. 29.7 oz.
Check price Full details →Aarn Mountain Magic 50 Pro vs Hyperlite Mountain Gear Southwest 40L Backpack: which should you buy?
If saving weight is your priority, the Aarn Mountain Magic 50 Pro wins — at 810 g it is 31 g (4%) lighter than the Hyperlite Mountain Gear Southwest 40L Backpack (841 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.