Splash resistant — This bicycle bag is made of 100% polyester and with a good anti-splash performance that helps to withstand drizzle. (Attention: not fully waterproof). Convenient to storage — 15L capacity, interlayer design are so convenient to keep things, and large storage space to meet your needs. Multi-purpose backpack — Drawstring bag design with shoulder rope on both side, which can be backpack, shoulder bag or handbag. This cycle bag light can be perfectly used for cycling, running and mountain climbing. Lightweight and Foldable — This bike backpack is so light that it can be easily fold and store. Mesh cover at the front is also convenient to keep clothes or bottles. Reflective design — SANTIC reflective logo on the right side can increase the visibility and keep you safe while you are riding at night.