← Gear database
Osprey Exos 48 vs Osprey Sirrus 36
Weight and specs compared for 2026 — and which one to choose.
Osprey Sirrus 36 is the lighter option — 60 g lighter than the Osprey Exos 48 (5% less weight). If grams matter to you, that is the one to beat.
Osprey Exos 48 vs Osprey Sirrus 36: which should you buy?
If saving weight is your priority, the Osprey Sirrus 36 wins — at 1,220 g it is 60 g (5%) lighter than the Osprey Exos 48 (1,280 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.