It is made up of imitation leather materials. Have good shock-proof effect. The style is very popular in the market this year.The material is very durable,it is shock-proof.Also our product is in good quality with resonable price...Many colors for your chosen: blue,green,orange,yellow,pink and sapphire blue.Sizes: 16', 18.7', 20', 21.3'...Small quantity is accepted.Fast delivery.If you have any ...