Pearl Izumi Men's Pro LTD Jersey Body: 100% polyester Sides, sleeves: 80% polyester 20% elastane Imported Read the care content label on the inside of your garment for specific instructions; use simple detergents with no additives P.R.O. Transfer In-R-Cool fabric powered by cold black provides optimal cooling and reflective sun protection, Flat lock seams for smooth interior The perfect balance of anatomic fit, performance engineered materials and the personal interface between athlete and gear A clothing system that works to help you maintain the perfect temperature for the weather conditions and activity range day in and day out