1.7L capacity and extended design-size 24*10*8.2cm. Can  store your wallet, energy gel, mobile phone, gloves, CO2 pump, repair bike tool, power bank, etc, mesh compartments on two sides. Compatible with Android/iPhone cellphone Under 6.8 inches, such as iPhone11 X XS Max XR 8 7/Samsung Galaxy s8 s7 note 7.

Upgrade high sensitive TPU film supports touch screen operation. Visibility to stop to answer a call. Hook and loop pads inside to stop phone falling. Hidden earphone hole lets you answer the phone or enjoy music whilst cycling.

Tough EVA material with 3D die-casting process. Solid shape  and looks stylish, the outer material carbon fiber is abrasion proof and durable.

This ROCKBROS Bike Frame Bag has water-resistant effect with polyester, seamless double zippers.

The 3 hook and loop straps design makes the bike bag install or release easily. Long enough for most types of bikes, but can be adjusted. Convenient and grasps your bike tightly to stop shaking.