Gossamer Gear G4-20 Ultralight 42 Backpack

This 42-liter listing of the G4-20 pack puts weight at 703 g and keeps the frameless build that defines Gossamer Gear's ultralight backpacks. Unlike some frameless designs that shave weight by skipping hip belt padding, this version carries a padded hip belt with pockets, which adds a bit of mass but improves comfort once the pack is loaded past the halfway mark. A single front pocket and two side pockets in mesh handle wet gear or snacks without opening the main compartment. Constructed from recycled nylon with a roll-top closure, the pack measures roughly 60 x 29 x 12 cm and splits its 42 L capacity between a 30 L main body and about 12 L of external storage. There's no integrated rain cover and no dedicated hydration sleeve, so plan on a pack liner or dry bags for wet-weather trips and a bladder stashed loose in the main compartment if needed. It's built for multi-day and thru-hiking use where hikers keep their carried weight modest and value a straightforward roll-top pack over a framed, heavily structured one.