The adidas Ultra Boost 1.0 Wool Grey became the first Ultra Boost to have a Primeknit upper made of wool. Initially released in 2015, the original colorway came back in 2020 with a true-to-OG design and fashion. It comes with a distinctive styling that makes it ideal for year-round wear. The adidas Ultra Boost 1.0 Wool Grey has a black outsole and a white midsole. Silver and grey cover the entire base of the sneaker. A grey overlay features the classic three stripes and keeps the laces in place. Toward the heel, there's another overlay in a darker grey for some contrast. The wool Primeknit gives the shoe a unique look, and the grey makes it blend in with the other design elements of the shoe. The adidas Ultra Boost Wool Grey released in August of 2015 for $180.