The Fidlock TWIST 450 Single Bottle is a versatile, compact bottle designed to attach securely to any TWIST Base using strong magnets. Cyclists and adventurers can easily snap the bottle onto bikes, backpacks, or other compatible gear, then release it quickly with a simple twist, ensuring it never gets lost on the go. As the smallest bottle in the TWIST lineup, the 450 ml format is ideal for riders and explorers who need reliable hydration while keeping their load light. Key Features Capacity: 450 ml / 15.22 fl oz Compatibility: Compatible with all TWIST Bases Materials: BPA-Free & BPS-Free