S® (Impact Guidance System) is an ASICS design philosophy that employs linked componentry to enhance the foot's natural gait from heel strike through toe-off

Some additional information: Has the following certifications written on it: ASA 2004

- -3 Length to Weight Ratio - 2 5/8 Inch Barrel Diameter - 1-Piece Seamless Carbon Composite Construction - XXL Barrel with Massive Sweetspot - Balanced Swing Weight - BBCOR Certified

100% Synthetic Imported Rubber sole Shaft measures approximately low-top from arch Cloudwave offers a plush stable and lively feel Airmesh upper Fit in motion upper for flexible support Soft anatomical sockliner for extra arch support and cushioning U4ic Midsole for cushioning

New Nike Girls' Short Sleeve Hydroguard Swimsuit Extra Large, White/Black Green Camo/Gold S® (Impact Guidance System) isDri FIT technology helps keep you dry and comfortable UV Protection from the sun on areas covered (UPF 40+) Internal neck tape offers added comfort against the skin Heat transfer Swoosh