Flaring a Glove
Set your oven to a low heat, less than 200 degrees. Allow your oven to warm up while you grease your glove.
Lubricate your glove with your favorite type of oil. Follow your manufacturer’s instructions carefully to avoid using a product that may harm the material of the glove. You may find that petroleum jelly works best for you, but you may also want to use lanolin oil or mink oil.
Put your baseball glove on a cookie sheet and place into the oven. Let the glove heat up for about five minutes. Check your glove to test for mobility. If your glove is not flexible enough for you to work with, continue heating your glove.
Allow the glove to heat in the oven but only in one-minute increments after the initial five-minute stage, if needed. Continue to monitor your glove until the material is easy for you to move and conform.
Stretch your glove as much as possible while it is warm. Bend it and play with it to loosen it up and improve flexibility with your grip. This is especially helpful since gloves conform to your hand and motions the more you use the glove.
Place a baseball in the pocket of your glove and wrap it up with shoelaces or a belt. Allow your glove to stay in this position overnight. Conforming your glove to a ball helps build a deeper pocket.
Repeat the steps over a period of several days until you reach the desired flare. It may take weeks or months for your glove to conform to your hand and grip.