A tough plastic bottle with a widemouth opening provides easy access to the 1-litre of liquid inside. A secure cap means that the bottle holds its contents securely in-between hydration breaks, and the imprint of both imperial and metric measurements help youperfectly mix fuels into your water to supplement your performance.Widemouth opening - for easy hydrationSecure cap - avoids leaks and dripsFeatures measuring guide - both imperial and metric measurementsBPA-free