it santini octa windstopper heavy white jacket 2016, is made with windstopper fabric, this is a wind and water resistant, elastic material, it will give you an excellent thermal protection. it has thermofleece technology in the inner part of collar, cuffs, and side panels this allows allows you to store the heat. its color is refractive on back pockets so that they can see you during the night. it has an internal elastic piece to hold it in place. features: -made with windstopper fabric. -technology thermofleece, in different areas. -reflecting back pockets. -internal elastic piece.