New Marucci Asura Fastpitch Softball Bat, Composite, Mint Drop 11 Size:28 17 washable inner liner for comfort One Size:Leather washable inner liner for comfort Two color gloss shell finish Meets NOCSAE standard for safety Size: Fits hat sizesA 6 1 4 to 7 CHEST PROTECTOR: Diamond vents on back for lightweight breathability Internal PE protective plates for extra protection from ball impacts Stainless steel matte black hardware Thin Soft fabric lining regardless of player size or strength Advanced EVolve Composite: Smart composite layering with progressive fiber angles creates a perfectly balanced combination of barrel responsiveness and durability tailored for younger fastpitch athletes TFX Endcap Technology: True Flex endcap design allows increased barrel flex toward the end of the bat for enhanced forgiveness on off center contact and improved energy transfer No Break In Required: Advanced composite construction delivers maximum performance immediately allowing players to step into games with full power potential from the first swing