← Gear database
Gregory Optic 48 vs Osprey Exos 58
Weight and specs compared for 2026 — and which one to choose.
Gregory Optic 48 is the lighter option — 50 g lighter than the Osprey Exos 58 (4% less weight). If grams matter to you, that is the one to beat.
Gregory Optic 48 vs Osprey Exos 58: which should you buy?
If saving weight is your priority, the Gregory Optic 48 wins — at 1,370 g it is 50 g (4%) lighter than the Osprey Exos 58 (1,420 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.