TheNike Metcon 4 XD X Whiteboard is the latest update to this versatile cross training shoe. In addition to the performance features youve come to expect these kicks have a customizable whiteboard-like surface that lets you write messages right on your shoes. Whiteboard-like surface lets you write messages on a part of each shoe. Mesh material on the heel and ankle provide breathability. Haptic shield is durable and provides a snug stable fit. Flywire technology gives a locked-down fit and feel. Low-profile heel clip rolls up on the lateral and medial sides helps reduce drag on wall exercises and handstand push ups. Drop-in midsole is soft and cushioned. Midsole offset from heel to toe is only 4mm for a flat sole that works well for weightlifting. Sticky rubber in the forefoot delivers traction. Tri-star pattern on the outsole delivers multi-directional traction. Rubber wraps up to the midsole for abrasion resistance.