Ultra-light Gobi and Vector Stretch fabric transfers moisture and breathes to keep you dry and comfortable Reflective elements for low-light Flat seams avoid irritation Fast Fit means comfortable stretch with a next-to-body friction free fit for less drag Zone Construction: mesh inserts for added ventilation Full separating zip with guard 3 elasticized back pockets slanted at the sides for easy entry Engineered collar detailed with shaped back neck Hem features signature grip elastic at the back with a flat front finish