Alpha Harness Size Chart
| Size | Neckline | Chest | Back Length |
| XS | 23-33cm/9-13in | 33-43cm/13-17in | 11cm/4.3in |
| S | 33-49cm/13-19in | 43-56cm/17-22in | 13cm/5in |
| M | 36-54cm/14-21in | 56-69cm/22-27in | 14.5cm/5.7in |
| L | 43-67cm/17-26in | 69-81cm/27-32in | 17cm/6.7in |
| XL | 45-69cm/18-27in | 81-107cm/32-42in | 19.5cm/7.7in |