First, you need these things: Mink, neatsfoot, tanners or glove manufacturer's oil
Baseball glove,Rag or cloth, and a Sponge or towel
1)Wipe down your glove with a damp rag or cloth. This will remove any dirt, clay, sand or other substances on your glove.
2)Apply mink, neatsfoot, tanners or a glove manufacturer's oil. Use a sponge or towel to oil the glove in small circular motions.
Spread oil in the pocket of the glove. The pocket of the glove, which is the area of the glove where the ball is caught, regularly sees the most action. The pocket tends to dry out quickly because of its use. Without being oiled, it could dry out and crack.
Rub oil into the area of the glove where your hand goes. Sweat and oils from your hand will dry out and crack the inside of your baseball glove. Keeping it well oiled will prevent any excess damage from occurring.
Focus on the individual laces of the glove. The laces hold the fingers of your glove tightly together. Keeping them oiled will decrease the possibility of them becoming dry and breaking.
Spot-oil the back of your glove in problem areas. The back of your baseball glove doesn't encounter the regular strains that the pocket of your glove does, but it could deteriorate over time. Spot-oiling the problems areas will keep the deterioration to a minimum.
3)Dry your glove. Set the glove upright in a well ventilated area for 3 or 4 hours, allowing all the oiled areas to breathe.
Remember:
Wash your hands before applying oil to your glove. Aside from your skin's natural oils, there can be dirt and debris that could aid in deteriorating your glove.
Foaming oil is another product available to oil your glove. Foaming oil, which is usually sold in specialty sports stores, is designed specifically to soften baseball gloves. Foaming oils aerate better and weigh down the glove less than other types of oils.
Never submerge your glove in water or place it under running water in an effort to clean it before adding oil to it. A leather glove can absorb a lot of water, and submerging it in water will ruin it.
Read the instructions that go with the oil you're going to use on your glove. Make sure the oil is compatible with your leather glove and won't ruin it. Not all oils should be applied to baseball gloves. For example, linseed oil and vegetable oil are not recommended for use on baseball gloves.
Use moderation when applying oil to your baseball glove. A little oil goes a long way. Make sure you evenly distribute a thin layer over the surface area of your glove. Loading your glove up with too much oil will make the glove heavier and bring more damage to it.