Men's Footwear - Wide Available in US Sizes 7-12, 13
| US Size | UK Size | EU Size |
| 5 | 4 | 37.5 |
| 6 | 5 | 38.5 |
| 6.5 | 5.5 | 39 |
| 7 | 6 | 40 |
| 7.5 | 6.5 | 40.5 |
| 8 | 7 | 41 |
| 8.5 | 7.5 | 42 |
| 9 | 8 | 42.5 |
| 9.5 | 8.5 | 43 |
| 10 | 9 | 44 |
| 10.5 | 9.5 | 44.5 |
| 11 | 10 | 45 |
| 11.5 | 10.5 | 45.5 |
| 12 | 11 | 46 |
| 13 | 12 | 47.5 |
| 14 | 13 | 48.5 |
| 15 | 14 | 49.5 |
Women's Footwear
| US Size | UK Size | EU Size |
| 5 | 4 | 37 |
| 6 | 4.5 | 37.5 |
| 6.5 | 5 | 38 |
| 7 | 5.5 | 38.5 |
| 7.5 | 6 | 39 |
| 8 | 6.5 | 40 |
| 8.5 | 7 | 40.5 |
| 9 | 7.5 | 41 |
| 9.5 | 8 | 42 |
| 10 | 8.5 | 42.5 |
Men's Body Measurements (Inches)
| Alpha Size | Neck | Chest | Arm Length | Waist |
| XS | 13-13.5 | 30-32 | 32.25-32.75 | 24-26 |
| S | 14-14.5 | 34-36 | 33-33.5 | 28-30 |
| M | 15-15.5 | 38-40 | 33.75-34.25 | 32-24 |
| L | 16-16.5 | 42-44 | 34.5-35 | 36-38 |
| XL | 17-17.5 | 46-48 | 35.25-35.75 | 40-42 |
| 2XL | 18-18.5 | 50-52 | 36-36.5 | 44-46 |
| 3XL | 19-19.5 | 54-56 | 36.75-37.25 | 48-50 |
| 4XL | 20-20.5 | 58-60 | 37.5-38 | 52-54 |
| 5XL | 21-21.5 | 62-64 | 38.25-38.75 | 56-58 |
| 6XL | 22-22.5 | 66-68 | 39-39.5 | 60-62 |
Women's Body Measurements (Inches)
| Alpha Size | Numeric Size | Chest | Arm Length | Waist | Hip |
| XS | 2-4 | 32.5-33.5 | 39.75-30.25 | 25-26 | 35.5-36.5 |
| S | 6-8 | 34.5-35.5 | 30.5-31 | 27-28 | 37.5-38.5 |
| M | 10-12 | 36.5-38 | 31.25-31.75 | 29-30.5 | 39.5-41 |
| L | 14-16 | 39.5-41 | 32-32.5 | 32-33.5 | 42.5-44 |
| XL | 18-20 | 43-45 | 32.75-33.25 | 35.5-37.5 | 46-48 |