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Peak Design Outdoor Backpack 25L vs Red Paw Packs Flatiron 28L

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

Red Paw Packs Flatiron 28L is the lighter option — 782 g lighter than the Peak Design Outdoor Backpack 25L (68% less weight). If grams matter to you, that is the one to beat.
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Spec Peak Design Outdoor Backpack 25L Red Paw Packs Flatiron 28L
Weight 1,150 g · 1.150 kg · 2.54 lb 368 g · 0.368 kg · 0.81 lb
Brand Peak Design Red Paw Packs
Category Backpack Backpack
Peak Design Outdoor Backpack 25L
1,150 g

Versatile hiking daypack with Terra Shell™ weather-resistant fabric, roll-top Ultra-Cinch closure (expands from 20-25L), and laptop sleeve. Hiking and everyday...

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Red Paw Packs Flatiron 28L
368 g

Handmade ultralight frameless fastpack perfect for trail running and fast hiking. Minimalist design with clean lines. Customizable materials allow weight reduct...

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Peak Design Outdoor Backpack 25L vs Red Paw Packs Flatiron 28L: which should you buy?

If saving weight is your priority, the Red Paw Packs Flatiron 28L wins — at 368 g it is 782 g (68%) lighter than the Peak Design Outdoor Backpack 25L (1,150 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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