Men's adidas Team Issue Fleece Full Zip Hoodie Brand new never used Model number: DH9317 "ClimaWarm® is lightweight, breathable insulation that keeps you dry and comfortable in cold weather conditions by using densely woven synthetic fibres to trap warm air close to the skin. While these fibres are dense enough to trap air, they are spaced far enough apart to easily allow heat-sapping sweat to escape through evaporation."