Adidas UltraBoost 4.0 'Breast Cancer Awareness' (style code: BC0247), a limited edition released in September 2018 to support breast cancer research. Key Features: Upper: Constructed with Primeknit woven in a blend of Black and White yarns for a two-tone look. Design Details: Features a matte black TPU midfoot cage and heel counter. The "ultra boost" branding on the heel is accented in Pink. Midsole & Outsole: Utilizes a full-length black Boost midsole for cushioning, paired with a white rubber outsole. Awareness Symbols: Includes a Pink breast cancer awareness ribbon on the heel counter and pink shoelace caps (aglets). The Ultraboost 4.0 generally fits true to size (TTS) for most people. However, the specific feel can vary depending on your foot shape and how you prefer your shoes to fit. Standard/Narrow Feet: Stick with your true to size measurement. The Primeknit upper is designed to hug the foot like a sock. Wide Feet: It is highly recommended to go half a size up (0.5) to ensure a comfortable fit and prevent your toes from pressing too hard against the front. Snug vs. Roomy: If you prefer a very secure, "locked-in" feel, stay true to size. If you like a little extra room for movement or thicker socks, consider going half a size up. Equivalent to Women's size 10.5.