Marucci Ascension V4 38S1 12.75" 1B Baseball Mitt MFG4AS38S1

The Marucci Ascension V4 38S1 12.75" First Base Mitt (MFG4AS38S1) gives first basemen a big, dependable target with the premium feel Marucci is known for. The M Type fit system integrates thumb and pinky sleeves with enhanced thumb-stall cushioning, so the mitt locks onto your hand for maximum comfort, control, and scooping confidence around the bag.

Key features & specs

• 12.75" first base pattern · Fit: Pro Tapered · Shape: neutral · Depth: deep
• Premium, tight-grain steerhide shell leather for durability while reducing weight
• Smooth cowhide leather lining for superior comfort and fielding security
• M Type integrated thumb and pinky sleeves with tapered hand-stall sizing
• Moisture-wicking mesh wrist lining with dual-density memory foam padding
• Professional-grade rawhide laces for maximum tear resistance
• Available in right-hand throw and left-hand throw

Coach's tip: Break it in by forming a deep, wide pocket with a softball and playing catch—first base mitts field best with a scoop-friendly pocket. Condition the leather lightly a few times a season, keep a ball in the pocket during storage, and never force the break-in with heat.