A medium weight knitted sweat fabric with a brushed interior. which offers a soft touch. Knitted sweat fabric Soft interior 55% Cotton. 45% Polyester (Recycled) By buying cotton products from G-Star Raw. you're supporting more sustainable cotton farming through the Better Cotton Initiative. Better Cotton is sourced via a system of Mass Balance. Find out more about our sustainable materials" Recycled polyester is produced from post-consumer or post-industrial waste materials such as PET plastic bottles and apparel. Material that would otherwise have been sent to landfill or to incineration.