Zefal Little-Z Kids Water Bottles

Believe it or not, there is a simple equation to calculate the size of your child’s bladder. Age x 2 + 2 = bladder capacity in oz. By our calculation, unless your child is under 5 ¾ this bottle alone would not necessitate a toilet stop. We are not doctors. Or mathematicians. Comes complete with an adjustable cage

Features

• 400 ml capacity
• Adjustable rubber fitting supplied with bottles
• Available in various colours