R-Tek Pro vests are made for warmth and layering--without adding extra bulk--thanks to stretch side panels. 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 Front zippered pockets with zipper garages Elastic binding at armholes and hem