COMPACT 600ML CAPACITY: The TWIST Replacement Bottle 600 (2022) is the perfect size for training rides, commutes, and shorter adventures, offering ample hydration without unnecessary bulk. UPDATED DESIGN FOR IMPROVED PERFORMANCE: Featuring enhanced durability, this latest version ensures a more comfortable grip and long-lasting use on any ride. SECURE MAGNETIC-MECHANICAL ATTACHMENT: Designed for use with Fidlock TWIST bases, this bottle locks in place effortlessly while allowing for quick, one-handed access, even on rough terrain. DURABLE & LIGHTWEIGHT CONSTRUCTION: Made from high-quality materials, this bottle is tough enough for rugged rides yet lightweight for easy handling and carrying. EASY-SQUEEZE WITH LEAK-PROOF VALVE: The flexible bottle material ensures smooth hydration, while the high-flow, self-sealing valve prevents leaks and spills, keeping your ride clean and hassle-free.