Hoka One One W Challenger ATR 6 sneakers The shoes come in a size Women’s 8.5B, (Men’s 7.5) UK size 7, and EU size 40 2/3. They are part of the Hoka One One W Challenger ATR 6 product line, which is known for its colorful and sporty themes. The last photo shows Hoka’s sizing chart for men and the equivalent to women. These sneakers are in excellent condition and are extremely comfortable!