Product name: Sports armband Product material: PU  Product features: 1.Waterproof material, daily waterproof, can block sweat infiltration. 2.Design of hook and loop with better adhesiveness is not easy to break after long-term use. 3.Breathable but not sultry.The honeycomb mesh design is breathable and not stuffy, comfortable and close-fitting. 4.Anti-shake interlayer of mobile phone in motion.Independent main bag and auxiliary bag design, and articles are classified and placed. If there is any problem with your product after you have received it,please contact us first. We will try our best to solve the problem. 100% brand new and high quality! Material:PU leather Size:Length * Width * Height: 19.5 * 10 * 2cm, Error: 0.5cm Specifics: 1cm=0.393inch, 1inch= 2.54cm Kindly Tip :  1. Please be reminded that due lighting effects, monitor's brightness/contrast settings etc, there could be some slight differencesin the colour tone of the website's photo and the actual item.  2. Item Measure by hand, it could be 1-3cm different, your kind understanding will be much appreciated.