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Osprey Sirrus 36 vs REI Co-op Trailmade 60

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

Osprey Sirrus 36 is the lighter option — 280 g lighter than the REI Co-op Trailmade 60 (19% less weight). If grams matter to you, that is the one to beat.
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Spec Osprey Sirrus 36 REI Co-op Trailmade 60
Weight 1,220 g · 1.220 kg · 2.69 lb 1,500 g · 1.500 kg · 3.31 lb
Brand Osprey REI Co-op
Category Backpack Backpack
Osprey Sirrus 36
1,220 g

Women's ventilated 36L pack with AirSpeed back panel.

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REI Co-op Trailmade 60
1,500 g

New budget-friendly 60L backpacking pack weighing 3 lbs 5 oz (1500g) M-XL, offering excellent value for multiday trips with comfortable load capacity.

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Osprey Sirrus 36 vs REI Co-op Trailmade 60: which should you buy?

If saving weight is your priority, the Osprey Sirrus 36 wins — at 1,220 g it is 280 g (19%) lighter than the REI Co-op Trailmade 60 (1,500 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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