Solids and heathers made of bluesign® approved midweight Synchilla® polyester fleece (80-85% recycled) Pullover with 4-snap nylon placket, stand-up collar and Y-Joint sleeves for increased mobility Left chest pocket has nylon flap and snap closure Cuffs and hem have spandex trim Hip length Solids: 7.5-oz 100% polyester (85% recycled) double-sided fleece. Heathers: 7.9-oz 100% polyester (80% recycled) double-sided fleece. Prints: 8.35-oz 100% polyester double-sided fleece. Solid and heather fabrics are bluesign® approved 405 g (14.3 oz)