These approved impact protectors are made from lightweight, flexible PU, engineered in a 3-dimensional form, making them very soft & flexible. The finish is smooth & the edges are thin, making Knox® Flexiform protectors an excellent choice for leather garment & textile garments. They also give the rider flexibility & total freedom of movement, with 2 hinge points to aid movement & 12 holes for breathability. The inside incorporates air channels to help with heat dispersal, keeping the rider comfortable & cool, while offering excellent protection.