This Science in Sport (SIS) Narrow Neck Drinks Bottle is the perfect way to stay hydrated on the go. The 800ml capacity is ideal for long days out, and the narrow neck design makes it easy to drink from. The bottle is made from BPA-free plastic, so you can be sure that your drinks are safe and free from toxins. The yellow colour is bright and cheerful, and the bottle is also available in other colours.The bottle is designed to be leak-proof, so you don't have to worry about spills or mess. The wide opening makes it easy to fill and clean, and the bottle is also dishwasher safe. The ergonomic design makes it comfortable to hold, and the bottle is lightweight and easy to carry.This Science in Sport Narrow Neck Drinks Bottle is the perfect way to stay hydrated on the go. It is ideal for long days out, and the ergonomic design makes it comfortable to hold. The BPA-free plastic construction ensures that your drinks are safe and free from toxins, and the wide opening makes it easy to fill and clean. The bottle is also leak-proof and dishwasher safe, making it a great choice for active lifestyles.