• 14L Massive Capacity for Ultimate Storage:This bike seat bag features a detachable design with a 14L main compartment (14.6x6.7x6.7 inches) and a 25.6x13.8-inch waterproof inner pouch. Perfect for storing clothes, tools, or camping gear on long rides or daily commutes
• Military-Grade Waterproof Protection:Built with a waterproof nylon outer layer, a diamond grid tear-resistant middle layer,and a wear-resistant polyester fiber base. The roll-top waterproof bike bag with heat-sealed liner keeps contents dry even in storms
• 4-Point Secure Mounting, Installs in 30 Seconds:The detachable hard shell frame with Velcro/strap system requires no tools. 4-point locking ensures zero wobble, fitting most road bike saddle bags or bicycle saddlebags. Remove and carry like a backpack
• 210D Heat-Sealed Liner for Pro-Level Durability:The inner layer uses 210D heat-sealed waterproof fabric with fully taped seams, providing splash-proof and leak-proof protection for phones, IDs, and other essentials in this bicycle saddle bag
• Lightweight Yet Ultra-Stable (630g):Weighing just 630g, the rigid frame resists deformation while the diamond grid reduces weight without sacrificing strength. A must-have bicycle accessory for adult bikes on mountain or road bikes