Part of a Game of Thrones capsule collection, the Game Of Thrones x UltraBoost 4.0 ‘White Walkers’ released in March 2019. Inspired by the show’s undead antagonists, the shoe’s Primeknit upper appears in white, supported by an Ice Blue Three-Stripes lacing cage, external heel counter and forefoot overlay. ‘Winter Is Here’ appears on the heel, while underfoot, a white Boost midsole gives way to a white Continental rubber outsole.