Features of the Mammut Men's Rime Light Insulation Flex Vest Lightweight, elastic, water-repellent Pertex Quantum Air material for increased breathability and freedom of movement Filled with 40 g/m^2 OTI Stretch Insulation for optimum heat retention and enhanced freedom of movement Elasticated inserts made from Pontetorto Stretch fleece on the sides and under the arms provide enhanced breathability Elastic lining material increases freedom of movement Smooth-running YKK Vislon front zipper 2 backpack and Climbing-harness-compatible zipper pockets Jacket can be stowed away in left front pocket Elastic cuffs Elastic hem MAMMUT Easy Combine compatible Fabric Details Main material: 100% Polyamide