Purging my closet and selling my preloved, rarely worn and excellent condition lilac cycling shoes with SPD cleats included. Size 11 is no longer available on the site. Performance cycling redefined for the studio. The Slipstream is a performance cycling shoe that doesn't sacrifice the style and comfort of your favorite pair of sneakers. With its breathable mesh toe box, slip-on construction, and single-strap closure system, it's the most comfortable shoe you'll ever wear to class.