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Arc'teryx Bora AR 63 vs Mystery Ranch Bridger 65
Weight and specs compared for 2026 — and which one to choose.
Arc'teryx Bora AR 63 is the lighter option — 130 g lighter than the Mystery Ranch Bridger 65 (5% less weight). If grams matter to you, that is the one to beat.
Arc'teryx Bora AR 63
2,270 g
Technical 63L pack with RotoGlide hipbelt for alpine approaches.
Full details →Mystery Ranch Bridger 65
2,400 g
Durable 65L pack with NICE frame system for heavy loads.
Full details →Arc'teryx Bora AR 63 vs Mystery Ranch Bridger 65: which should you buy?
If saving weight is your priority, the Arc'teryx Bora AR 63 wins — at 2,270 g it is 130 g (5%) lighter than the Mystery Ranch Bridger 65 (2,400 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.