the shoelace holes are made from low quality rubber. if u try to fasten it will be torn. try some other. i just tried once after getting the product but now i can't replace nor use it any more. waste of money.
Very good product as expected In fact from first purchase this time I got very good product from AIR. I received this on 27/6/19,and I went for a long walk 25km. I feel comfortable, suggest to buy this product.