88% Recycled Polyester / 12% Elastane. Quick Dry. Stretch Fabric. 3 Button Placket. Oversized Pete Logo. Ribbed Collar. Model Is 6'2" And Wears Size Medium. Machine Wash According To Instructions On Care Label. COOLMAX® technology is a family of Polyester fibers that are designed to help you beat the heat. This cooling technology creates clothing with permanent moisture wicking-performance.