Lightweight performance polyester/spandex fabric offers unbeatable comfort and flexibility. Stay cool and protected with solar-factor 40+ UPF and moisture-wicking, sweat-powered cooling technology. Fit & Design: Lightweight Performance Polyester Spandex Heather Fabric Lightweight Breathable Panels on Side Seams and Back Solar-Factor 40+ UPF Moisture Wicking Technology and Sweat Powered Cooling Quick Dry and Breathable Side Vent Detail at hem Additional Details: Machine wash cold with like colors, Only non-chlorine bleach when needed, Tumble dry low, Remove promptly, Cool iron if needed