Product Story: Hit Your Stride In The Calibrate Kevlar, Featuring Xetic, The Latest Innovative Midsole Technology From Puma. Xetic Technology Responds To The Specifics Of Each Individual Step While The Calculated Infinity Curve Structure Gives A Personalised Response Under Impact To Deliver Cushioning Right Where You Need It.The Upper Features An Engineered Knit Vamp With A Woven Kevlar Panel In The Mid Foot To Give Lightweight Strength And Support, While New Season Branding Adds A Fresh Look To Deliver A Slick-Looking Shoe That Delivers A Smoother, Sleeker Ride.Details Low Boot Silhouette Engineered Knit Upper With Kevlar Panel Xetic Midsole Breathable Tongue With New Season Label Lace Closure For A Snug Fit Webbed Loop On Heel Kevlar Logo On Heel Panel Puma Formstrip On Lateral And Medial Sides