Gossamer Gear - Rygsæk G4-20 Ultralight 42L backpack - Titanium GreyGossamer Gear G4 20 Ultralight 42L backpack The backpacks capacity consists of the main compartment of 30L and the remaining 12 liters in the external pockets. The pockets on the hip belt are not included in the capacity of the backpack, only the outer pockets on the sides and the large mesh pocket. G4 20 is made of 70D Robic Ripstop Nylon with reinforcements in 100D Robic Ripstop Nylon. As with all frameless backpacks, it is important that you pack