Mizuno Franchise GXF90B2 12.5" Adult Baseball First Base Mitt 12.5" First Baseman's Mitt Comfortable patterns based on the anatomical shape of the hand. Java Leather: Pre-oiled tumbled leather is game ready and long lasting. HiLo Lacing: Alternating lace pattern retains the intergrity of a fully laced web with greater flexibility. Parashock Plus Palm Pad: Ortholite parashock palm pad reduces sting and deadens the ball at impact. MZO Lining: Disperses perspiration away from the skin. PST Back Design: Insert in-between fingers stabilizes and shapes the pocket.