1、Made of Silicone material, is extremely soft, gentle even durable in use, and will not bring any allergenic reaction to your skin. 2、Having high elasticity, and your feet will feel comfortable without any sense of constraint due to its just enough stretch. 3、Texture design on its surface, and makes it more fashionable and cool. 4、There are three sizes designed for you to fit your feet. 5、This is really an utility term to keep your fin on while diving, swimming, snorkeling. Description: Have you been bothered with no suitable fins keepers while you are diving or snorkeling? Or you have ones, but they bring little comfort. However, this is a good choice for you to stay our store having a look, and this term may give you a totally different experience! Feature: 1. Made of Silicone material, is extremely soft, gentle even durable in use, and will not bring any allergenic reaction to your skin. 2. Having high elasticity, and your feet will feel comfortable without any sense of constraint due to its just enough stretch. 3. Texture design on its surface, and makes it more fashionable and cool. 4. There are three sizes designed for you to fit your feet. 5. This is really an utility term to keep your fin on while diving, swimming, snorkeling. Specification: Name: Fin Keepers Size Corresponding Feet size Weight(Approx) Material: Silicone S 35-38 40g Color: Black M 39-41 53g Size: S/M/L(Optional) L 42-45 60g Package Included: 1 x 2Pcs/Set Fin Keepers Notes: Fins are not included in our products.