<b>Specifications</b> <br> <b>- Applicable</b>: unisex <br> <b>- Material</b>: waterproof nylon <br> <b>- Lining</b>: polyester mesh <br> <b>- Volume</b>: 5.5L <br> <b>- Size</b>: free <br> <b>- Weight</b>: 250g <br> <b>- Use for</b>: trail running, road running, night running, cycling