Bike Rack Trunk Bag compatible with Trek Procaliber 2025 and most bike types Why you need it Keeps gear dry and protected on daily rides and in wet weather with rainproof construction and laminated rainproof zippers. Frees you from carrying a backpack by providing organized, secure storage on your bike rack. Installs quickly without tools and stays firmly attached over rough terrain. Key features and benefits Durable, weatherresistant materials: Made from Oxford cloth with a PU coating for wear resistance and easy cleaning. Waterblocking zippers: Laminated rainproof zippers help prevent water from seeping into the main compartment. Strong construction: Meticulous stitching and reinforced edges extend service life through frequent use. Spacious, organized storage: Main compartment holds essentials such as wallet, phone, towel, spare clothes, tools, water bottle, and snacks. Phone pocket with clear cover: Rainproof phone pocket keeps your device accessible for navigation while protecting it from moisture. Two side compartments: Separate pockets keep small items organized and easy to reach. Quick and secure mounting: Adjustable buckle straps and hookandloop fasteners allow tool installation and a snug fit on most racks and frames. Stable attachment: Designed to minimize wobble and shifting, even on bumpy roads or trails. Visibility features: Reflective strips on both sides increase visibility in low light conditions. Compatibility and use Compatible with Trek Procaliber 2025 and suitable for mountain bikes, road bikes, ebikes, and hybrid bikes. Ideal for commuting: Carry phone, wallet, lunch, and a light jacket for rides to work. for longer rides and touring: Store spare clothes, multitools, water, and snacks within easy reach. Useful for errands and quick trips: Hold groceries, a towel, or items securely on your rack. Practical details No tools required for installation. Easy to clean with a damp cloth. Built to handle daily cycling and variable weather while keeping your essentials organized and accessible.