Using a tape measure, grasp the end with your thumb and make a loose fist. Wrap the tape under your palm and over your knuckles to meet the end of the tape held by your thumb. The size in inches (rounded up i.e 9.25 inches will be size 9.5 glove) is roughly the size you require. This is a rough guide only.
Suppliers of Kick-balls Elasticated training balls, Goalkeeper Gloves and training aids, Goalkeeper training.