← Gear database

Salomon ADV Skin 20 vs Zpacks Arc Blast 55L

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

Salomon ADV Skin 20 is the lighter option — 55 g lighter than the Zpacks Arc Blast 55L (12% less weight). If grams matter to you, that is the one to beat.
Spec Salomon ADV Skin 20 Zpacks Arc Blast 55L
Weight 395 g · 0.395 kg · 0.87 lb 450 g · 0.450 kg · 0.99 lb
Brand Salomon Zpacks
Category Backpack Backpack
Salomon ADV Skin 20
395 g

Lightweight 20L running vest with front flasks included.

Full details →
Zpacks Arc Blast 55L
450 g

Frameless Dyneema pack with excellent load carry for its weight.

Full details →

Salomon ADV Skin 20 vs Zpacks Arc Blast 55L: which should you buy?

If saving weight is your priority, the Salomon ADV Skin 20 wins — at 395 g it is 55 g (12%) lighter than the Zpacks Arc Blast 55L (450 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