Easy on for the kid who's always on the go. The Athens has Kizik's unmistakable spring-back CageM, plus Rabbit Foam TM outsoles that bounce back for cushy walking. Plus, it stays on for all that jumping, running, climbing, and all-around kid stuff. Big kid size 5.5Y is equal to a women’s size 7 per Kizik website size conversion chart (23.5 cm). Please note stains to top back of left shoe and inside of both shoes reflected in pictures 4 and 7 and scuffing to inner aspect of right sole in picture 6. Questions? Leave a comment below!