Fidlock Twist 600 Bottle + Bike Base The Best Twist You should always carry a water bottle with you while you're riding so you can stay hydrated. The Fidlock Twist 600 Bottle + Bike Base comes with everything you need to set up a new Fidlock bottle on your frame. The bottle has a leak-proof, self-sealing bottle cap with a high water flow valve and optional dirt cover. It features an improved squeeze due to a soft, BPA-free polyurethane. The Twist 600 is also dishwasher-safe and compatible with all Twist bases for bikes. Features Improved squeeze due to a soft, BPA-free polyurethane Leak-proof, self-sealing bottle cap with a high water flow valve and optional dirt cover Magnetically snaps your bottle in place and only releases when you give it a twist Capacity: 600ml / 20. 5 fl oz | Fidlock | Twist 600 Bottle + Bike Base 600, Clear | Polyurethane