The Undefeated x UltraBoost ‘Shift Grey’ takes on a completely neutral colorway, with subtle logo hits that underscore the collaborative nature of the release. A breathable Primeknit upper, blending black and grey fibers, is supported by a translucent TPU cage marked by UNDFTD lettering. Mismatched tongue tags showcase Undefeated’s Five Strikes on the right shoe and an adidas logo on the left.