Mizuno Glove Steamer Days are our local showcases where you can get your favorite ballglove steam-softened and professionally shaped and conditioned while you check out our latest gear. We start by softening the leather and relaxing the seams in our exclusive Glove Steamer. Once that is complete, our experts will work with you to shape the pocket and hinge points in the seams to fit your hand and playing style. The result? In about five minutes, you have a game-ready glove fitted just for you.