A spacious backpack for minimalists - 38 liters and just 1.2 kg! The trampoline style mesh back panel is as airy as anything, making for great carrying comfort. The manufacturer recommends this pack for use with cargo weights up to 9 - 11 kg. - Main fabric: 100D high tenacity nylon - Aluminum frame guides the weight to the hip belt - AirSpeed back panel ventilates well - Compression straps - Elastic "kangaroo pocket" at front panel - Elastic side pockets - Comfortable, ventilated shoulder straps - Stow On the Go hiking pole holders - Measurements and weights: - S/M: Volume 38 liters, weight 1230 g, measurements 75 x 33 x 30 cm - L/XL: Volume 41 liters, weight 1240 g, measurements 80 x 33 x 30 cm