Portwest DX4 Hi-Vis Short Sleeve T-Shirt DX413 High visibility leisurewear garments are made from fluorescent, EN ISO 20471 certified, 65% polyester, 35% Cotton. The bird-eye knit construction ensures that it is lightweight, breathable and extremely comfortable to wear. Washing Instructions Max wash temp 40C, mild process Do not bleach Do not tumble dry Drip line dry Do not dry clean Fabric:100% Polyester Mesh 150g Please click on the size guide to check the Portwest workwear sizes.