![J23 iPhone App on Twitter: "Nike Metcon 4 XD x Whiteboard lets you write on the heel and wipe it away when you're ready to switch it up Link -> https://t.co/RTPI4UvbgY https://t.co/88KC3L5Q5Z" / J23 iPhone App on Twitter: "Nike Metcon 4 XD x Whiteboard lets you write on the heel and wipe it away when you're ready to switch it up Link -> https://t.co/RTPI4UvbgY https://t.co/88KC3L5Q5Z" /](https://pbs.twimg.com/media/D07kp0OX4AIKfFX.jpg)
J23 iPhone App on Twitter: "Nike Metcon 4 XD x Whiteboard lets you write on the heel and wipe it away when you're ready to switch it up Link -> https://t.co/RTPI4UvbgY https://t.co/88KC3L5Q5Z" /
![The “Chalkboard” version of the Metcon 4 XD cross-trainer allows you create custom messages or designs rig… | Cross training shoes, Nike training shoes, Nike metcon The “Chalkboard” version of the Metcon 4 XD cross-trainer allows you create custom messages or designs rig… | Cross training shoes, Nike training shoes, Nike metcon](https://i.pinimg.com/736x/29/d3/42/29d34295e9976dd576a72bbadcfac054.jpg)
The “Chalkboard” version of the Metcon 4 XD cross-trainer allows you create custom messages or designs rig… | Cross training shoes, Nike training shoes, Nike metcon
![Introducing the Nike Metcon XD Whiteboard and Chalkboard Editions. + Fully customisable with special whiteboard and chalkboard erasable… | Nike metcon, Nike, Metcon Introducing the Nike Metcon XD Whiteboard and Chalkboard Editions. + Fully customisable with special whiteboard and chalkboard erasable… | Nike metcon, Nike, Metcon](https://i.pinimg.com/originals/4f/59/4b/4f594bc66b8c9735798f232d6f2790a5.jpg)