LiteAF Ultra 40L Curve Full Suspension

The LiteAF Ultra 40L Curve Full Suspension is an ultralight backpack for thru-hikers and trekkers who still want a proper suspension system rather than a stripped-down frameless design. The removable aluminum-stay frame pairs with a contact-padded back panel, curved s-shaped shoulder straps, and a padded hip belt that can also come off entirely — useful for shorter trips or lighter loads. Back length is adjustable, so fit can be dialed in rather than relying on one fixed torso size. The body is built from Ultra 200X, a seam-taped Dyneema/UHMWPE fabric rated fully waterproof, which explains the premium weight-to-durability ratio — LiteAF lists the minimum configuration at 708 g, though the build recorded here comes in at 907 g, so weight depends on fitted options. Main volume is 40 l, 55 l including the mesh side pockets and front pocket, for a volume-to-weight ratio around 60 l/kg. There is no rain cover and compression is side-only, suiting ultralight base weights on extended trips of six nights or more rather than winter loads.