With R-Tek Pro we've taken soft brushed fleece and added stretch side and sleeve panels for easy movement and a sleeker look. Plus R-Tek Pro resists pilling and incorporates Low Impact Technology for enhanced softness and performance. 12-ounce 100% polyester R-Tek Pro fleece 88/12 poly/spandex side panels Reverse coil zipper with chin guard Zippered chest pocket Front zippered pockets with zipper garages Elastic binding at hem