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Forclaz MT900 UL 50+10 vs ULA Circuit

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

ULA Circuit is the lighter option — 200 g lighter than the Forclaz MT900 UL 50+10 (23% less weight). If grams matter to you, that is the one to beat.
Spec Forclaz MT900 UL 50+10 ULA Circuit
Weight 880 g · 0.880 kg · 1.94 lb 680 g · 0.680 kg · 1.50 lb
Brand Forclaz ULA
Category Backpack Backpack
Forclaz MT900 UL 50+10
880 g

Decathlon ultralight thru-hiking backpack with 50+10L capacity, roll-top closure and removable components for paring down trail weight.

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ULA Circuit
680 g

Ultralight 68L frameless pack. Thru-hiker favourite.

Full details →

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Forclaz MT900 UL 50+10 vs ULA Circuit: which should you buy?

If saving weight is your priority, the ULA Circuit wins — at 680 g it is 200 g (23%) lighter than the Forclaz MT900 UL 50+10 (880 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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