The Science In Sport Branded Bottle 800ml has a unique Easy Mix System. This SiS bottle 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.   It is a clean, fast, and convenient way to prepare and use Science in Sport drinks. SIS drinks bottles are graduated to show how much powder should be added for the correct solution of SiS GO and REGO drinks. To use, start by adding drink powder up to the appropriate level; part fill with water and shake to mix the drink; finally top up to the final level with more water. Science In Sport Branded Bottle Features Unique easy mix system Soft rubber nozzle Easy to grip bottle with ergonomic shape Lockable valve for leakproof transport No fuss, no mess, with less chance of contaminating your drink Dishwasher safe