These scan high visibility trousers have scotchlite retro reflecting tape on the lower part of leg for extra visibility they are made from 100 polyester with a polyurethane coating to protect against foul weather their waterproof seams are stitched and taped the waist is elasticated for comfort conform to en471 class 1 and also to en343 class 3 for protective clothing against foul weather available in m l xl and xxl