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Aarn Mountain Magic 50 Pro vs Decathlon Forclaz MT900 UL 50+10L

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

Aarn Mountain Magic 50 Pro is the lighter option — 505 g lighter than the Decathlon Forclaz MT900 UL 50+10L (38% less weight). If grams matter to you, that is the one to beat.
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Spec Aarn Mountain Magic 50 Pro Decathlon Forclaz MT900 UL 50+10L
Weight 810 g · 0.810 kg · 1.79 lb 1,315 g · 1.315 kg · 2.90 lb
Brand Aarn Decathlon
Category Backpack Backpack
Aarn Mountain Magic 50 Pro
810 g

Body-balance 50L pack in 70D Robic Gridstop UHMWPE with U-Flow harness and removable front balance pockets for comfort.

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Decathlon Forclaz MT900 UL 50+10L
1,315 g

Affordable ultralight backpacking pack with 50L capacity plus 10L extension collar. Highly functional load lifters and large front pockets. Budget-friendly entr...

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Aarn Mountain Magic 50 Pro vs Decathlon Forclaz MT900 UL 50+10L: which should you buy?

If saving weight is your priority, the Aarn Mountain Magic 50 Pro wins — at 810 g it is 505 g (38%) lighter than the Decathlon Forclaz MT900 UL 50+10L (1,315 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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