An Optional velcro strap in black or gray was available – these straps attached to the main male website link with the bracelet. Luckily, the fabric strap within the IW3715-36 along with the alternate rubber strap within the IW3548 suit the Aquatimer! Nonetheless it seems to be the factor now https://www.watchesworld.com/frozen-in-time-luxury-watches-for-winter/