ULTRA-LIGHTWEIGHT PRO PERFORMANCE: Weighing just 53g, the R550 is one of the lightest bottles. Trusted by continental teams, it sheds weight without losing durability. Ideal for bikes, also versatile as a multi-sport bottle for the gym & beyond. CAPACITY & DIMENSIONS: The R550 AMZ offers a 550ml capacity in a sleek 175mm frame. With a standard 74mm diameter. SUPERIOR SQUEEZE & ERGONOMIC GRIP: Engineered with thick, flexible walls, this water bottle offers an industry-leading squeeze performance. The R water bottle fits bike water bottle cages, while the super-tight grip allows for easy one-handed use. SOFT-TOUCH TIP & EFFORTLESS FLOW: Experience a unique hydration feel with our specialized soft-touch tip. This high-flow squeeze bottle opens and closes with zero effort, giving total control over every drop a truly leakproof water bottle. PRECISION MONITORING: Never run dry again. Our sports water bottle features a transparent strip with scale to check your levels at a glance. CERTIFIED SAFETY & BPA-FREE: Made from BPA-free polypropylene and food-grade LDPE, the R Series fully complies with food contact regulations (Regulation 10/2011).