Body: 100% Polyamide Imported Zipper closure Machine Wash The 10K/10K waterproof fabric is durable and protective yet lightweight, while the ventilation system on the back keeps the air flowing – as does the smart-vent button on the front. The fabric moves with you. The elasticated hood stays put. The slightly transparent mesh-inspired fabric looks great and is ultra-light – and, the whole jacket can be stowed away in the chest pocket.