Flexible insulation for early starts and windy mountain summits. Lightweight and functional jacket designed for hiking and high-intensity movement in the mountains.Fit: Slim+ Use of Vapovent Light technology to manage humidity and breathability+ Windproof fabrics combined with warm, comfortable mesh for lightweight and breathable insulation+ Adjustable hem for a customized fit+ Internal mesh compression pocket+ 1 chest pocket and 2 zipped hand pockets+ Ergonomic and protective stretch hood