Features: Made of EVA hard shell,PU material and waterproof zipper,shock-absorbent,rainproof and easy cleaning. 0.8L Large space design,can put phone,mini pump,keys,energy bars and tire patches etc. Reasonable interior space design,a mesh pouch and an elastic fixing strap to separate your gears. Reflective strip is conspicuous in the dark straps to keep you safe. Convenient taillight loop is for hanging tail light on your bike. Configured seat cushion buckle,easy to remove the bag after you install the seat cushion buckle on your bike. Specification: Material: EVA,PU Capacity: 0.8L Size: 195*90*80mm/7.7*3.5*3.1in Package weight: Approx. 175g/6.2oz Package List: 1* Bag NOTE:The bag can prevent light rain,but it can not be exposed to the heavy rain for a long time or direct soak into water.