Bicycle Tube Phone Bag for Trek Powerfly 5 2017 Compatibility and capacity Applicable models: Trek Powerfly 5 2017 Total capacity: 2 liters Please check that this bag fits your model before Clear access to your phone with protection from sun Transparent sensitivity TPU touchscreen film lets you operate your phone while it stays inside the bag visor keeps the screen clearly visible in bright sunlight Includes a headphone hole for convenient audio access without removing the phone 2 in 1 multifunction design Features two side pockets and a removable phone pocket Phone pocket attaches to the of the bag with Velcro for quick access The bag sits snugly against the bike frame to avoid interference with pedaling Large storage for tools and essentials Two side pockets, each measuring 17.5 x 4 x 11.3 cm Ample space for bike tools, snacks, and other small items Practical use scenarios City commuting: use navigation on the phone without taking it out of the bag Weekend rides and trails: keep tools and snacks within easy reach Long distance rides: have phone access and general storage neatly organized on the tube Practical and reliable design Built to stay securely in place while riding Maintains a low profile to minimize impact on pedaling efficiency Uses materials suited for daily cycling use while preserving phone visibility and accessibility Note: This description preserves the original product brand, model compatibility, functions, and specifications while presenting clear benefits and practical use cases.