Sioen 113A Kilau Comfort High Vis Orange Long Sleeve Polo shirt. Conforms to EN471 Class 3:2. Conforms to GO/RT 3279 Rail Workwear. Comfortable temperature control & moisture wicking performance with the inner 50% Viscose / 50% polyester drop needle blend & the 100% polyester outer finishing at 175gsm. Two button placket & a flat knit collar.