The new 2010 uses a multi layer Biaxial technology that precisely aligns and bonds filaments of premium aerospace grade composite giving you a long lasting performance packed bat. The Inner flex technology delivers handle flex and energy transfer to optimize barrel rebound. The MPa7 Resin systen is exclusivley calibrated to optimize the performance ans resilience of the composite. Handle is wraped in X-Tack grip allowing for more grip control. All miken bats are made in the USA.