The Ortlieb Toptube Frame-Pack is the smart solution for all who want to use their frame's main triangle for storage space without having to do without their water bottle. Waterproof to IP67 standard (with fully closed zipper) means your gear stays dry in the worst conditions- even during river crossings. Waterproof fabric, seams and zipper to IP67 standards Attaches to top tube and seat tube with Velcro straps 19.7" L x 5.1" H x 2.4" W Specifications Color Black Defined Color Black Model Specific Fit No Number of Compartments 1 Primary Material PU laminated rip stop nylon Waterproof Yes Weight 660 A: Top Tube Length (CM) 41 A: Top Tube Length (IN) 16.1 E: Seat Tube Length (CM) 15 E: Seat Tube Length (IN) 5.9 Width (IN) 2.4 Width (CM) 6 Volume (In3) 183 Volume (L) 2