Unisex Geek T-shirt Size Chart (in inches)
| SIZE | LENGTH (A) | CHEST (B) | SLEEVE LENGTH (C) |
| S | 28 | 34 - 37 | 15 ¾ |
| M | 29 ¼ | 38 - 41 | 17 |
| L | 30 ¼ | 42 - 45 | 18 ¼ |
| XL | 31 ¼ | 46 - 49 | 19 ½ |
| 2XL | 32 ½ | 50 - 53 | 20 ¾ |
| 3XL | 33 ½ | 54 - 57 | 22 |
Product measurements may vary by up to 2" (5 cm).