Paris based Etudes teams up with adidas Consortium to celebrate the European Union with this release. The adidas Consortium x Etudes Ultra Boost Uncaged is constructed with a Primeknit upper in shades of blue as a nod to Etudes frequently used color; and an embroidered Europen Union stars logo on the toe box. Primeknit upper. Embroidered stars on upper. adidas Consortium x Etudes tongue label. Uncaged construction. Heel loop. Boost cushioning. Rubber outsole.