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Gregory Facet 55 vs Gregory Optic 48

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

Gregory Optic 48 is the lighter option — 120 g lighter than the Gregory Facet 55 (8% less weight). If grams matter to you, that is the one to beat.
Spec Gregory Facet 55 Gregory Optic 48
Weight 1,490 g · 1.490 kg · 3.28 lb 1,370 g · 1.370 kg · 3.02 lb
Brand Gregory Gregory
Category Backpack Backpack
Gregory Facet 55
1,490 g

Women's 55L lightweight pack with AeroFloat suspension.

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Gregory Optic 48
1,370 g

Lightweight 48L trail pack with suspended mesh back panel.

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Gregory Facet 55 vs Gregory Optic 48: which should you buy?

If saving weight is your priority, the Gregory Optic 48 wins — at 1,370 g it is 120 g (8%) lighter than the Gregory Facet 55 (1,490 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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