The Bertucci® Italian Rubber NATO band uses a proprietary high performance rubber material that offers extreme comfort, durability & pliability; plus salt water, chemical and UV resistance, non-toxic, non-irritating. The material will form to your wrist and eliminating wrist roll. One size fits all. Fits any A-2, A-3, A-6, B-1, D-1, D-3, G-1 case type and other 22 mm lug width opening watches. Our U.S. Patented tool-less design permits band change in seconds. 2 year warranty. Made In Italy.