K Swiss BigShot Light 4 Big Kids Tennis Shoes Size:5.5 The Optimized Tubular Construction honeycomb The Optimized Tubular Construction honeycomb polymer core and carbon graphite hitting surface with Extreme Spin technology and a Comfort grip provides players with great feel stretchy jersey fabric and features moisture management technology to keep you dry and comfortable throughout the match The K Swiss Bigshot Light 3 Junior Tennis Shoes are built for the player that values tour level technologies in a playable platform This shoe is great for the player that is developing their game and footwork and are ideal for hard court or clay court playing surfaces