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Lowe Alpine AirZone Active 18 vs Peak Design Outdoor Backpack 25L

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

Lowe Alpine AirZone Active 18 is the lighter option — 380 g lighter than the Peak Design Outdoor Backpack 25L (33% less weight). If grams matter to you, that is the one to beat.
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Spec Lowe Alpine AirZone Active 18 Peak Design Outdoor Backpack 25L
Weight 770 g · 0.770 kg · 1.70 lb 1,150 g · 1.150 kg · 2.54 lb
Brand Lowe Alpine Peak Design
Category Backpack Backpack
Lowe Alpine AirZone Active 18
770 g

Lightweight 18-liter daypack for hiking and outdoor activities. Features ergonomic back panel, padded straps and adjustable capacity from 18-20 liters.

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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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Lowe Alpine AirZone Active 18 vs Peak Design Outdoor Backpack 25L: which should you buy?

If saving weight is your priority, the Lowe Alpine AirZone Active 18 wins — at 770 g it is 380 g (33%) 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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