Adidas Rapidarun Boa K Casual Slip Resistant, Abrasion Resistant, Breathable Mid top Kids Running Shoes Blue Green. 29 11k 11½k 17.5. 28 10k 10½k 16.5. 40 6½ 7.0 24.5. 30 11½k 12k 18.0. 31.5 13k 13½k 19.0.