Lightweight woven shell for unrestricted movement and comfort Mesh insets for enhanced ventilation and cooling Internal crepe brief with Icefil uses Xylitol to keep you cool and comfortable Icefil – Icefil technology is a multifunctional, intelligent moisture sensitive fabric designed to keep you cool when your body temperature is not. Icefil is a must have if you plan to train or race anywhere around the globe that is hot and humid. Xylitol Yarn – Convert your sweat into refrigerant. Stay cool and fresh. Xylitol yarn reacts to your body’s moisture, creating an additional 1.8 degree F reduction in skin temperature. This technology is especially effective in high humidity. VENTflex hip panel in brief for maximum range of motion Surf-style front closure combined with a clean-finish comfort waistband offers an innovative new look and feel Zippered back pocket for secured storage 6" inseam Reflective Details UPF 50