The ROCKBROS 12L Bike Rack Bag is a durable, weather-resistant storage solution built for daily cyclists who want secure, organized space on every ride. With a 12L main capacity, expandable side pockets, and rain protection, it keeps your essentials ready whether you’re commuting, touring, or hitting the trail.

• Main Capacity & Interior Organization: 12L main compartment with a removable divider and multiple inner pockets to keep small items neatly arranged and easy to access.
• Expandable Side Pockets: Fold-out pockets on both sides extend storage for day trips or daily commutes.
• Stable Construction & Protective Padding: Thick foam pads lining the bottom and sides help the bag hold its shape and protect your items on rough roads.
• Weather-Resistant & Portable: Water-resistant polyester with an included rain cover and a carry strap for easy transport; a drawstring bottle holder keeps your bottle secure on bumpy rides.
• Safety & Visibility: Reflective straps and a rear taillight compatible strap boost visibility for night riding.
• Secure Fit & Broad Compatibility: Four mounting straps plus two fixed buckles ensure a stable, shift-free fit on most racks, including fat bikes, e-bikes, and commuters.
• Specifications: Material: Polyester; Color: Black; Weight: ≈566g; Capacity: 9–12L; Mounting Type: Rack Mount; Strap Type: Removable, Adjustable.

Whether you’re cruising the city, tackling hills, or venturing on longer rides, this ROCKBROS bag keeps your gear organized, dry, and within easy reach. The 12L main compartment offers enough room for a compact tool kit, snacks, a light jacket, and personal items, while the expandable side pockets handle extra layers or accessories. The protective padding prevents items from shifting, and the rain cover guards against sudden showers. Reflective straps and taillight compatibility enhance safety during low-light hours. With a secure rack-mount setup and adjustable straps, you can switch bikes or loadouts quickly without worrying about sway—so you can focus on the ride itself.