Hyperlite Mountain Gear Southwest 40L Backpack vs Salomon ADV Skin 12

Weight and specs compared for 2026 — and which one to choose.

Salomon ADV Skin 12 is the lighter option — 581 g lighter than the Hyperlite Mountain Gear Southwest 40L Backpack (69% less weight). If grams matter to you, that is the one to beat.

Spec	Hyperlite Mountain Gear Southwest 40L Backpack	Salomon ADV Skin 12
Weight	841 g · 0.841 kg · 1.85 lb	260 g · 0.260 kg · 0.57 lb
Brand	Hyperlite Mountain Gear	Salomon
Category	Backpack	Backpack

Hyperlite Mountain Gear Southwest 40L Backpack

841 g

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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Salomon ADV Skin 12

260 g

Ultra-light 12L trail running and fastpacking vest.

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Hyperlite Mountain Gear Southwest 40L Backpack vs Salomon ADV Skin 12: which should you buy?

If saving weight is your priority, the Salomon ADV Skin 12 wins — at 260 g it is 581 g (69%) 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.

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