Bicycle tube phone bag for Trek Roscoe 8 2019 with a 2 liter capacity. Please verify compatibility with your bike model before . sensitivity touchscreen and visor Transparent TPU touchscreen film allows you to operate your phone while it remains inside the bag. The visor keeps the screen clearly visible in bright sunlight, improving readability during rides. Headphone hole for hands listening A dedicated headphone hole lets you route earphones through the bag so you can listen to music or take calls without removing your device. Multifunctional 2 in 1 design Features two side pockets and a removable phone pocket. The phone pocket attaches to the of the bag with Velcro for easy removal or access. The bag sits snugly against the bike frame to avoid interfering with pedaling. Large capacity storage Two side pockets sized at 17.5 x 4 x 11.3 cm provide ample space for bike tools, snacks, and other small items. Use scenarios Daily commuting and city rides: keep your phone accessible for navigation or calls, with easy onehanded access through the transparent screen window. Longer rides and bike tours: store essential tools and snacks in the side pockets while keeping your phone securely attached and easy to reach. Training rides and podcasts: route earphones through the headphone hole to listen while your device stays protected inside the bag.