The exclusive SiS Pro Cycling Bottle, as used by Sir Chris Hoy, features the unique Easy Mix System. This has been designed to deliver fast and accurate mixing. The Easy Mix System enables you to pour specific amounts of Science in Sport powder directly into the bottle by using the pre-determined marks printed on the outside of the bottle. As used by Sir Chris Hoy., Unique easy mix system., Soft rubber nozzle., Easy to grip bottle with ergonomic shape., Lockable valve for leakproof transport., Dishwasher safe.,