In most instances, the NATO watchstrap is constructed from synthetic nylon material. It is a durable and inexpensive material choice for military personnel. Although, FEIT feels otherwise, as they have introduced their leather NATO watch strap. Carefully crafted by hand, the straps are made from premium Italian vegetable leather that is tanned without any chrome and harmful chemicals. Offered in Natural, Marine, and Nero, these straps measure 20mm in width with silver buckles. Only 20 pieces of each colorway is produced to order, so jump onto their web shop to place an order before they run out.