The Ultra Boost made its debut in a cageless version during the summer of 2016, featuring a more simplistic and uninterrupted Primeknit upper in comparison to the original model. This women's release retains the exceptional qualities of the Ultra Boost 3.0, such as the full-length Boost midsole, dependable Continental rubber outsole, and sturdy heel counter. With the addition of a sock-like collar, this adidas footwear encompasses a snug fit that securely embraces the foot. The highly anticipated Ultra Boost Uncaged Black for women was made available in late June 2016.