Next Level 3600 T-shirt Size Guide
| S | M | L | XL | 2X | 3X | |
| Length | 28" | 29" | 30" | 31" | 32" | 33" |
| Sleeve | 7.5" | 7.9" | 8.3" | 8.7" | 9.1" | 9.5" |
| Chest | 19" | 20.5" | 22" | 24" | 26" | 28" |
| S | M | L | XL | 2X | 3X | |
| Length | 28" | 29" | 30" | 31" | 32" | 33" |
| Sleeve | 7.5" | 7.9" | 8.3" | 8.7" | 9.1" | 9.5" |
| Chest | 19" | 20.5" | 22" | 24" | 26" | 28" |