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Arc'teryx Bora AR 63 vs Gregory Zulu 35

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

Gregory Zulu 35 is the lighter option — 1,220 g lighter than the Arc'teryx Bora AR 63 (54% less weight). If grams matter to you, that is the one to beat.
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Spec Arc'teryx Bora AR 63 Gregory Zulu 35
Weight 2,270 g · 2.270 kg · 5.00 lb 1,050 g · 1.050 kg · 2.31 lb
Brand Arc'teryx Gregory
Category Backpack Backpack
Arc'teryx Bora AR 63
2,270 g

Technical 63L pack with RotoGlide hipbelt for alpine approaches.

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Gregory Zulu 35
1,050 g

Ventilated 35L daypack with 3D Hydro reservoir sleeve.

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Arc'teryx Bora AR 63 vs Gregory Zulu 35: which should you buy?

If saving weight is your priority, the Gregory Zulu 35 wins — at 1,050 g it is 1,220 g (54%) lighter than the Arc'teryx Bora AR 63 (2,270 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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