Hyperlite Mountain Gear Southwest 40L Backpack vs Salomon ADV Skin 20
Weight and specs compared for 2026 — and which one to choose.
Fully waterproof Dyneema Composite Hybrid pack with aluminum stays and foam back panel. Built for off-trail use in harsh conditions. 29.7 oz.
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Hyperlite Mountain Gear Southwest 40L Backpack vs Salomon ADV Skin 20: which should you buy?
If saving weight is your priority, the Salomon ADV Skin 20 wins — at 395 g it is 446 g (53%) 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.