Nike has teamed up with Union LA to collaborate on a special edition of the Nike Dunk High Challenge Supreme. They include elements from the classic Nike Air Tech Challenge. Another unusual feature is the ankle strap that features the Union logo. Other features include the LA logo sittched into to heel tab.

The shoes sport a predominantly black upper along with blue contrast stitching and volt accents. Unfortunately they are sold out, so all you guys can do is enjoy the pictures.

Via Freshness Mag.

Union LA x Nike Dunk High Challenge Supreme