Lezyne Water Bottle Holder Flow Cage E - Material: Composite Material - Bottle can be clamped left or right - Weight: 48g Improved side clamp makes it easy to access the bottle into the frame. Durable, fiber reinforced Composite Matrix construction. Optimized side-load shape for easy bottle access in compact frames. Engineered to hold bottles securely. Oval mounting holes allow fine tuning of position on frame. Available in left- or right-side configurations.​​