In November 2017, Under Armour collaborated with Dwayne 'The Rock' Johnson to create the UA x Project Rock Delta 'Black'. This sneaker boasts a high-top design that incorporates a seamless breathable mesh on the upper, a molded heel cup, and a soft foam collar. It also features a two-piece Charged Cushioning midsole for added comfort, reflective detailing to enhance visibility in low-light conditions, and a durable rubber outsole with deep flex grooves. The colorway of this shoe includes a black upper and sole unit with grey accents, including Johnson's iconic Brahma Bull logo on the heel.