The Gel-kinetic™ Sp Sneaker Blends Advanced Cushioning Technologies With A Derby-inspired Upper. This Silhouette's Upper Construction Mirrors The Design Of A Traditional Leather Derby. The Traditional Materials Are Revamped With A More Comfortable Collar And Foothold. The Shoe’s Midsole Is Formed With Ff Blast™ Cushioning And A Scutoid Shape, Featuring Gel™ Technology. These Features Are Strategically Designed To Help Increase Impact Absorption For Advanced Comfort.