The Zipp Alumina Bottle Cage Black is engineered for optimal hydration access, featuring a design that allows both side and direct bottle entry. Its thin-but-strong arms ensure easy bottle insertion and removal from any angle, making it ideal for smaller frames and tight angles. Weighing only 27 grams, this aluminum cage offers a sleek, innovative design comparable to the carbon SL Speed cage, yet at a more affordable price. Suitable for mounting on seat tubes or down tubes, it is compatible with road, cyclocross, and mountain bike frames, providing versatile hydration solutions for cyclists.