Gossamer Gear Mariposa 60L Backpack vs LiteAF ECOPAK 30L Curve Frameless
Weight and specs compared for 2026 — and which one to choose.
Versatile ultralight pack with internal frame and removable foam back panel. 60L capacity ideal for multi-day thru-hikes with loads up to 35 lbs.
Full details →Ultralight frameless backpack made from 100% recycled polyester fabric; fully waterproof and durable
Full details →HikeLoad is reader-supported. As an Amazon Associate we earn from qualifying purchases, at no extra cost to you. Learn more.
Gossamer Gear Mariposa 60L Backpack vs LiteAF ECOPAK 30L Curve Frameless: which should you buy?
If saving weight is your priority, the LiteAF ECOPAK 30L Curve Frameless wins — at 368 g it is 602 g (62%) lighter than the Gossamer Gear Mariposa 60L Backpack (970 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.