Applicable models Bicycle Tube Phone Bag for Trek Speed Concept Disc 2022. Capacity is 2 liters. Please check compatibility with your model before . sensitivity touchscreen, visor, and headphone hole Transparent TPU touchscreen film allows operation of your phone without removing it from the bag. A visor keeps the screen clearly visible in bright sunlight. A headphone hole provides access to audio while riding. Multifunctional design Two side pockets plus a removable phone pocket offer a 2in1 solution for phone storage and general storage. The phone pocket attaches securely to the of the bag with Velcro. The bag fits snugly against the bike frame to avoid interfering with your pedaling. Large capacity Two side pockets measure 17.5 x 4 x 11.3 cm, providing ample storage space for bike tools, snacks, or other small items. Everything can be conveniently stored and organized. Use scenarios Long rides or GPS navigation: operate your phone through the touchscreen window without opening the bag; the visor reduces glare for easy viewing. Training or racing: quick access to tools, snacks, and essentials in the side pockets while keeping the bag close to the frame for stable pedaling. Daily commute: keep small items organized and within reach, with a dedicated phone pocket attached on for fast access.