adidas and Stella McCartney release the WMNS-exclusive UltraBoost X Pack executed in a Stone / Grey / Black and White / Core Black. These models feature a mesh upper accented with a TPU toe wrap and TPU heel cup. The Velcro cross straps provide a locked-down secure wear while the sock-like collar ensures a comfortable fit. Other elements include -the heel pulls, full Boost midsole, and the rubber Continental outsole. The adidas by Stella McCartney WMNS UltraBoost X Pack is available at Kith SoHo, Kith Miami, Kith LA, and Kith.com.