In December 2016, Kith Founder Ronnie Fieg celebrated the opening of his premiere pop-up location in Aspen, Colorado with this first-ever Ultra Boost Mid. Aptly named ‘Aspen,’ the design features a sweater-like Primeknit upper and matching multicolor laces as a nod to the area’s signature mountain style. The cage-less construction, sock-fit collar, and responsive Boost sole provide a cozy fit regardless of the weather.