Get ready for exciting water adventures wearing the ergonically-fitted 2XU Aero Tri Sleeved Top. Aerodynamic SBR CHANNEL through shoulders and side panels. Quick-drying and breathable hydrophilic nylon-LYCRA fiber SBR VENT upper body. Crew neckline. Short sleeves. Zippered closure. 79% microfiber polyester, 15% elastane, 6% polyester. Machine wash, dry flat.