The ThumbPRO performance thumb guard is ergonomically engineered to fit your hand and stay in place swing after swing. It enables proper bat grip, unlocking your optimal swing by getting the bat up in your fingers and avoiding the “death grip” that can hold you back. Increase your bat speed and prevent bat sting without the fear of getting jammed. Own the inside half of the plate and the entire strike zone with the best thumb guard you can get.
More Zing! Less Sting!
As a guide, use a string or ribbon to measure around the circumference of the thumb--halfway between the base and the first knuckle of the thumb.
We recommend measuring for size in the way it will be used up at bat. If the players wears a glove at bat, measure with the glove on. If a glove is not worn, then measure without a glove on.