The Hannah BRIXAM is a stylish, functional piece. The sleeves feature the Polarsoft Thermo material. This material has excellent thermal insulation properties, great breathability, and minimal water absorption thanks to the fibre’s structure. With Duratherm insulation. This polyester fibre has excellent thermoregulation properties. That’s also why this sweatshirt can serve extremely well as a second layer while being absolutely perfect as a top layer as well.