Hand crafted in Italy, the groundbeaking RUN1 low-top runner is presented in full-grain Italian calf leather, the finest part of the calf, paired with hand selected wool. Artfully constructed with hand sewn upper, gold plated triangle speed lacing and heel handle. The shoe offers a lightweight sole and high grip bottom.
| Italian BUSCEMI | French | US | UK | Japan |
| 39 | 40 | 6 | 5 | 24 |
| 40 | 41 | 7 | 6 | 25 |
| 41 | 42 | 8 | 7 | 26 |
| 42 | 43 | 9 | 8 | 27 |
| 43 | 44 | 10 | 9 | 28 |
| 44 | 45 | 11 | 10 | 29 |
| 45 | 46 | 12 | 11 | 30 |
| 46 | 47 | 13 | 12 | 31 |
| 47 | 48 | 14 | 13 | 32 |
| 48 | 49 | 15 | 14 | 33 |
| 49 | 50 | 16 | 15 | 34 |
| 50 | 51 | 17 | 16 | 35 |
| 51 | 52 | 18 | 17 | 36 |
| Italian BUSCEMI | French | US | UK | Japan |
| 35 | 36 | 5 | 2 | 22 |
| 35.5 | 36.5 | 5.5 | 2.5 | 22.5 |
| 36 | 37 | 6 | 3 | 23 |
| 36.5 | 37.5 | 6.5 | 3.5 | 23.5 |
| 37 | 38 | 7 | 4 | 24 |
| 37.5 | 38.5 | 7.5 | 4.5 | 24.5 |
| 38 | 39 | 8 | 5 | 25 |
| 38.5 | 39.5 | 8.5 | 5.5 | 25.5 |
| 39 | 40 | 9 | 6 | 26 |
| 39.5 | 40.5 | 9.5 | 6.5 | 26.5 |
| 40 | 41 | 10 | 7 | 27 |
| 40.5 | 41.5 | 10.5 | 7.5 | 27.5 |
| 41 | 42 | 11 | 8 | 28 |
| 41.5 | 42.5 | 11.5 | 8.5 | 28.5 |
| 42 | 43 | 12 | 9 | 29 |
| 42.5 | 43.5 | 12.5 | 9.5 | 29.5 |
| Italian BUSCEMI | US | Inches | Centimeters |
| 24 | 8 | 6.30 | 16.0 |
| 25 | 9 | 6.55 | 16.65 |
| 26 | 9.5 | 6.71 | 17.05 |
| 27 | 10.5 | 6.97 | 17.7 |
| 28 | 11.5 | 7.22 | 18.35 |
| 29 | 12.5 | 7.48 | 19.0 |
| 30 | 13 | 7.74 | 19.65 |
| 31 | 13.5 | 7.99 | 20.3 |
| 32 | 1.5 | 8.27 | 21.0 |
| 33 | 2.5 | 8.52 | 21.65 |
| 34 | 3.5 | 8.78 | 22.3 |
| Italian BUSCEMI | US |
| 80 | 32 |
| 85 | 34 |
| 90 | 36 |
| 95 | 38 |
| 100 | 40 |
| 105 | 42 |
| Italian BUSCEMI | Inches | Centimeters |
| S/M | 21.65 | 55 |
| M/L | 22.44 | 57 |
| Italian BUSCEMI | Age | Inches | Centimeters |
| 17 | 0 - 6 Months | 4.33 | 11.0 |
| 19 | 6 - 12 Months | 4.88 | 12.4 |
