The Ahastyle WA11 Duotone is made of high quality silicone while the clasp is made of stainless steel. It has a modern design with different color exterior and interior. The inside of the strap is properly designed to allow air to flow to the wrist. The adjustable strap allows you to adjust your watch effortlessly, while the metal clasp provides fast and secure closing. The strap is washable so you can enjoy it clean at all times.