The green Oryon shirt is a lightweight, breathable men's shirt designed to offer maximum UPF for summer hiking and travel. Constructed from a ripstop, four way stretch and moisture wicking DarkMatr™ fabric with UPF 50 for maximum protection from harmful UV rays. Features concealed rear vent for breathability and extendable collar for additional coverage. The Oryon range has been designed with maximum sun protection in mind, ideal for summer hiking and hot weather expeditions across mountainous, jungle and desert environments. Our own DarkMatr™ fabrics have been chosen for their balance of stretch, durability and breathability making for a reliable range of shirts, trousers and shorts built to go the distance without overheating. Crucially, this fabric has a UPF rating of 50 meaning it blocks over 98% of harmful ultraviolet rays. Features on the Oryon shirt have been added with sun protection in mind such as an extendable collar to cover the back of your neck as well as a concealed rear vent cut to channel airflow during periods of activity. With press stud fastenings throughout to enable quick, easy dumping of heat as required.