2026 A1000® 1620 12.5” BASEBALL FIRST BASE MITT12. 5 first base mitt with soft, game ready full grain leather for young players. Anchor the infield with the A1000 1620, a 12. 5 first base mitt made with full grain leather that breaks in fast and forms to your hand over time. The 12. 5 reach, single break point design and Reinforced Single Post Web create a deep pocket to help young first basemen pick any throw. Handcrafted in the Wilson Pro Stock Factory, the A1000 1620 is designed with young