| Alpha Size | Chest (in) | Chest (cm) | Waist (in) | Waist (cm) | US Size | UK Size | EU Size |
| XS | 33–35 | 84–89 | 27–29 | 69–74 | 34–36 | 34–36 | 44–46 |
| S | 35–37 | 89–94 | 29–31 | 74–79 | 36–38 | 36–38 | 46–48 |
| M | 38–40 | 96–102 | 32–34 | 81–86 | 40–42 | 40–42 | 50–52 |
| L | 41–43 | 104–109 | 35–37 | 89–94 | 44–46 | 44–46 | 54–56 |
| XL | 44–46 | 112–117 | 38–40 | 97–102 | 48–50 | 48–50 | 58–60 |
| XXL | 47–49 | 119–124 | 41–43 | 104–109 | 52–54 | 52–54 | 62–64 |
| XXXL | 50–52 | 127–132 | 44–46 | 112–117 | 56–58 | 56–58 | 66–68 |
| 4XL | 53–55 | 135–140 | 47–49 | 119–124 | 60–62 | 60–62 | 70–72 |
| 5XL | 56–58 | 142–147 | 50–52 | 127–132 | 64–66 | 64–66 | 74–76 |
