The front is made of high quality fabric with good waterproof performance, so you can easily deal with weather conditions.Even if it gets wet in the rain. The reverse side is made of comfortable honeycomb breathable mesh, which is sweat absorbent, and has quick-drying properties.The material has excellent anti-slip properties, so the running pouch wont shake while exercising. Function: Can hold mobile phone, keys, cards, etc. Product Features: 1, high quality fabric, soft, comfortable, waterproof. 2. Ultra lightweight, ultra-thin, quick drying, satisfy your outdoor activities. 3. Lightweight and durable design reduces arm strain, good ventilation performance, stitching in accordance with international standards, good tear resistance.