The Rib Cage II is not only a sleek, lightweight water bottle cage, but it's also been designed to be fast in the wind. Of course, it also performs its primary task of holding tight to bottles dutifully, so you won't be losing bottles when the road gets rough. Super-low bottle position improves the aerodynamic profile. Tuned compression design provides a secure bottle retention with easy in-and-out accessibility. Reinforced composite material improves durability without adding weight. Sleek, minimalist design with razor-sharp graphics.