Lezyne Side Load Flow Bottle Cage EASY ACCESS - The optimized side-load shape makes it easy to access your bottles in even the most compact road and mountain bike frames. COMPOSITE MATRIX - Composite Matrix is a high-strength fiber reinforced material used to make mold injected components, creating pro level cycling products. LIGHTWEIGHT & STRONG - A balance between weight savings and strength. The Composite Matix gives the SL Flow durability while only weighing in at 48 grams. FINE TUNE THE POSITION - Oval mounting holes allow fine tuning of the bottle cage position on frame. A PASSION FOR DESIGN - Every product comes from a combination of a love for cycling and a passion for design. Our products are intelligently engineered and designed, and functionally complete.