Take this folding bag with you and forget about plastic bags !
TECHNICAL SPECIFICATIONS : Untearable 230 D nylon bag, beige. Strengthened sewing. 1 reversible pocket with zipper (allows storing the bag when folded). Contains: 18 liters. Rip-stop nylon is a light-weight nylon fabric with inter-woven ripstop reinforcement threads in a crosshatch pattern, so that the material resists ripping or tearing.