Bicycle Tube Phone Bag for Trek Slash (Low) 2021 Compatibility and capacity: Specifically designed for Trek Slash (Low) 2021 bicycles; capacity of 2 liters. Please verify compatibility with your model before . Clear touchscreen access and visibility: Transparent sensitivity TPU touchscreen film lets you use your phone without removing it from the bag. The visor keeps the screen clearly visible in strong sunlight. Includes a headphone hole for onthego audio. Multifunctional storage: The bag features two side pockets and a removable phone pocket. The phone pocket attaches to the of the bag with Velcro for easy access. This 2in1 setup provides separate phone storage and general storage while the bag stays snug against the bike frame to avoid interfering with pedaling. Generous internal capacity: Side pockets measure 17.5 x 4 x 11.3 cm, offering ample space for bike tools, snacks, or other small items.