Applicable Models Bicycle Tube Phone Bag for Trek Roscoe 2019. Capacity 2 liters. Please check if the product fits your model before . sensitivity touchscreen, visor, and headphone hole Transparent sensitivity TPU touchscreen window allows you to operate your phone while it is inside the bag. The visor keeps the phone screen clearly visible in bright sunlight. Multifunctional design Features two side pockets and a removable phone pocket, providing a 2in1 solution for phone storage and general storage. The phone pocket attaches securely to the of the bag with Velcro. The bag sits snug against the bike frame to avoid interfering with pedaling. Large capacity and dimensions Two side pockets measure 17.5 x 4 x 11.3 cm, offering ample storage space for bike tools, snacks, or other small items. Use scenarios Daily riding and commuting: keep your phone accessible for navigation or calls, while storing tools and snacks in the side pockets, all without adding bulk. Long rides or gravel adventures with Trek Roscoe 2019: carry tools, snacks, and other small items within easy reach; use the removable phone pocket for quick phone access and control via the TPU touchscreen window. Training sessions: listen with a connected headset through the headphone hole while managing calls or maps on the phone inside the bag.