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Deuter Futura 30 SL vs REI Co-op Flash 45

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

REI Co-op Flash 45 is the lighter option — 140 g lighter than the Deuter Futura 30 SL (11% less weight). If grams matter to you, that is the one to beat.
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Spec Deuter Futura 30 SL REI Co-op Flash 45
Weight 1,330 g · 1.330 kg · 2.93 lb 1,190 g · 1.190 kg · 2.62 lb
Brand Deuter REI Co-op
Category Backpack Backpack
Deuter Futura 30 SL
1,330 g

Women-specific 30L hiking backpack with Aircomfort ventilation system, ActiveFit shoulder straps, and flexi spring steel frame for balanced weight distribution

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REI Co-op Flash 45
1,190 g

Lightweight 45L versatile backpacking pack.

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Deuter Futura 30 SL vs REI Co-op Flash 45: which should you buy?

If saving weight is your priority, the REI Co-op Flash 45 wins — at 1,190 g it is 140 g (11%) lighter than the Deuter Futura 30 SL (1,330 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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