Stretch fit and complete stability learned from trail running make the S-LAB Peak 20 set ideal for long days of running and mixed hiking in the mountains. Balanced front and rear loads, varying hydration solutions and attachments for accessories make it the choice of serious mountain athletes. Lightweight stretch materials, MotionFit trail back system and a balanced load design minimize the carrying weight. Fully adjustable fit and stretch materials comfortably stretch the pack around the torso, without inhibiting movement. Fast drying mesh feels great against skin and enables more air to permeate the straps and back panel. Weight: 580. Pack weight (LB OZ)17.073. Pack volume (CI)1220. Pack volume (L)20. Pack weight (G)484. Material: Mesh.