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 fleece88/12 poly/spandex side panelsReverse coil zipper with chin guardZippered chest pocketFront zippered pockets with zipper garagesElastic binding at armholes and hem