Gossamer Gear Mirage 40 vs Liteway Biggie Pack Ultra 45L
Weight and specs compared for 2026 — and which one to choose.
40L frameless ultralight pack crafted from ALUULA Graflyte fabric, one of the lightest full-featured backpacks available in 2026.
Ultralight 45L pack at 570g. X-Pac fabric with roll-top design, waterproof upgrade available.
Building a pack? Add either one to your HikeLoad list, or drop its weight into the base weight calculator, and see what it does to your total weight.
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Gossamer Gear Mirage 40 vs Liteway Biggie Pack Ultra 45L: which should you buy?
If saving weight is your priority, the Gossamer Gear Mirage 40 wins — at 527 g it is 43 g (8%) lighter than the Liteway Biggie Pack Ultra 45L (570 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.