KR went all out in designing their high-performance, interchangeable bowling shoes. Biomechanical contouring was used in the engineering of this shoe. Forged-fiber woven jacquard upper for premium fit and durabilty Lace-up closure with Komfort-FitTM construction KR engineered KRystalized rubber outsole STA-DRYTM Open Mesh tongue for maximum breathability Biomechanically contoured for ultimate comfort and performance Innovative H-Bar heel locking system Ortholite 3D Deluxe Insole 2-YEAR Warranty Included parts on slide foot shoe: Genuine Clarino #8 white microfiber slide pad and #5 graduated rubber heel Included parts on push foot: T02 rubber push-off sole (fixed) and #2 shark tooth heel Included in the box: #10 grey felt slide pad, #6 perforated white microfiber slide pad, #7 black leather heel, Dura-Flex shoe cover, and a KR Strikeforce branded accessory bag