Fit and Design Light, functional long-sleeved top for trekking in warm, sunny conditions Made from recycled polyester jersey that is moisture-wicking and quick-drying Hood with reinforced brim protects head and neck from sunburn Thumb holes help pull the sleeves down to protect the hands Under-arm gussets for great range of movement Shoulder seams positioned towards the back to reduce risk of chafing Slightly looser cut that lets air circulate around the body 100% Polyester