Profile Design Aquarack
Mount this on your seatpost to carry your water - aero style. The Aquarack's clamp and extension is fabricated from 6061-T6 aluminum for both durability and stiffness - it doesn't flex and bend when inserting or removing water bottles. Each wing of the Aquarack holds on water bottle and one threaded CO2 cartridge. Includes Design Kage cages.