Castle X Racewear 2015 Launch G2 Jacket Yellow Size MD Med Medium INSULATION: 3M Thinsulate Extra Warmth Insulation (150 g body/100 g sleeve) in shell and a removable 3M Thinsulate Extra Warmth Insulation 60 g liner (overall combined insulation 210 g body/160 g sleeve) WATERPROOFING: Ultra tough polyester and nylon shell with Ven-Tex 1.0 windproof, waterproof, breathable and DWR coatings