New Louisville Slugger 2014 MLB Prime Ash Baseball Bat 32 Inch Black Silver Dessert Sand Black the Mach AI bat franchise padding wrapped thumb the Mach AI bat franchise has generative design developed by a super computer that simulates thousands of innner wall variations to create a finely tuned barrel that is perfected quarter inch by quarter inch 100% Synthetic leather Mizuno's patented 9 Spike Technology for maximum lateral stability and traction Top quality Dynamic Synthetic Leather and Mesh for lightweight comfort 3 4 length contoured compression molded EVA footbed dissipates shock and facilitates stability Mizuno Wave for stability and cushioning Turning model I13 is swung by Evan Longoria MLB high quality veneer ash wood construction Amish Vacuum Drying process and Finishing System (AFS) guarantees Slugger's hardest wood 360 degree wood compression is better than bone rubbing and won't miss a soft spot The official and Number1 wood bat used in the MLB