This Ratio 18 Daysack is perfectly proportioned for carrying all of the supplies you will need for a basic day's hiking. With 18 litres of capacity, you have room for your map, compass, lunch and even a jacket if necessary. Complete with an AirMesh padded back system and shoulder straps, the pack will provide all day comfort whilst exploring the outdoors._Foam injected AirMesh padding shoulder straps - provide ultimate comfortAirMesh padded backAdjustable shoulder strapsHydration compatible Nylon stretch mesh side pocketSide webbing compression strapsReflective strap at bottom for a bike lightWebbing waist belt - for comfortable carryMain compartment with document holder panel on rear wallInternal key clipFront zipped compartmentMade with 100% Certified Recycled fabricsVolume: 18 LitresSize: 22.5 x 17.5 x 42.5cmWeight: 0.41kgFabric: 100% RPET / 600D polyester / PU coatingLining: 100% RPET / 210D polyester / PU coatingColour: Blue