Sneakers by K-Swiss, Leather upper, Lace-up fastening, Branded tongue and cuff, Padded for comfort, Textured tread, Wipe with a damp sponge, 50% Other Materials, 50% Real Leather Upper. K-Swiss have been courtside since 1966. Serving up their all American tennis shoes - they made their debut at Wimbledon no less - K-Swiss go characteristically clean cut in their Classic 88 sneakers and low-top styles.