← Gear database

Hyperlite Mountain Gear Unbound 55 vs Salomon ADV Skin 12

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

Salomon ADV Skin 12 is the lighter option — 593 g lighter than the Hyperlite Mountain Gear Unbound 55 (70% less weight). If grams matter to you, that is the one to beat.
Spec Hyperlite Mountain Gear Unbound 55 Salomon ADV Skin 12
Weight 853 g · 0.853 kg · 1.88 lb 260 g · 0.260 kg · 0.57 lb
Brand Hyperlite Mountain Gear Salomon
Category Backpack Backpack
Hyperlite Mountain Gear Unbound 55
853 g

Internal frame pack made from Dyneema Composite Hybrid fabric with 55L capacity. Designed for thru-hiking with weather-resistant roll-top lid and comfortable su...

Check price Full details →
Salomon ADV Skin 12
260 g

Ultra-light 12L trail running and fastpacking vest.

Full details →

Hyperlite Mountain Gear Unbound 55 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 593 g (70%) lighter than the Hyperlite Mountain Gear Unbound 55 (853 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.

More backpack comparisons

Hyperlite Mountain Gear Unbound 55 vs Zpacks Nero Classic Ultra Backpack Hyperlite Mountain Gear Unbound 55 vs Zpacks Nero Classic 50L Hyperlite Mountain Gear Unbound 55 vs Zpacks Nero Classic Backpack Hyperlite Mountain Gear Unbound 55 vs Zpacks Nero Classic 40L Hyperlite Mountain Gear Unbound 55 vs Zpacks Nero Classic 30L Hyperlite Mountain Gear Unbound 55 vs Zpacks Nero Classic