Worker Walker Super Active are breathable, hygienic and comfortable shoe insoles for any kind of work and safety shoes and boots. Made of 3 layers. The top layer is polyester fabric which facilitates air circulation and removes dampness from your shoes. The middle carbon filter layer perfectly absorbs undesirable odours. The bottom latex layer provides good shock absorption and improves walking comfort. The insoles make your feet dry and fresh. They are intended for work and safety shoes, but can also be used with trekking, athletic and summer footwear. The insoles are cut-to-fit. Use guides to cut out the right size for your feet.