Gossamer Gear Mirage 40L Pack ALUULA vs Hyperlite Mountain Gear Aero 28
Weight and specs compared for 2026 — and which one to choose.
Lightest framed 40L backpack, 19.4oz, ALUULA Graflyte V52 ultra-lightweight fabric
Full details →Ultralight 28L fastpack with vest-strap harness. Perfect for fast-and-light adventures and trail running.
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Gossamer Gear Mirage 40L Pack ALUULA vs Hyperlite Mountain Gear Aero 28: which should you buy?
If saving weight is your priority, the Hyperlite Mountain Gear Aero 28 wins — at 536 g it is 13 g (2%) lighter than the Gossamer Gear Mirage 40L Pack ALUULA (549 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.