Product Description Material: Neoprene Size: 25 cm * 17 cm * 4 cm Colour: Black Quantity: 1 piece Package content: 1 piece * Running vest 1. 【SUPER LIGHT】 - Thanks to the unique patented design and the breathable neoprene material, the running vest is very light. 2. 【SIMPLE OPERATION】 - No more unnecessary fiddling with the mobile phone behind a clunky plastic sheet. Simply pull out the mobile phone, operate it and plug it in again. 3. 【FIRM SEAT】 - The unique design of the vest holds the cell phone firmly and securely in the cell phone pocket and prevents it from jumping up and down while walking and guarantees a comfortable fit. Inside the cell phone pocket there is a small pocket with Velcro , perfect for money, ID and cards. 4. 【WITH KEY CLIP】 - Front door or car keys can be securely attached to the matching clip in the shoulder strap. 5. 【IDEAL FOR RUNNING LIGHTS】 - Lights for running in the dark can easily be attached to the shoulder straps and back strap of the training vest.