Size Guide: Zen Shirt
| Size | Back Length | Sleeve Length | Chest | Waist | Bottom |
| XS | 75,5 | 64 | 92 | 88 | 86 |
| S | 76,5 | 65 | 98 | 94 | 92 |
| M | 77,5 | 66 | 100 | 100 | 98 |
| L | 78,5 | 67 | 106 | 106 | 104 |
| XL | 79,5 | 68 | 114 | 114 | 110 |
| XXL | 80,5 | 69 | 120 | 120 | 116 |
| Size | Back Length | Sleeve Length | Chest | Waist | Bottom |
| XS | 75,5 | 64 | 92 | 88 | 86 |
| S | 76,5 | 65 | 98 | 94 | 92 |
| M | 77,5 | 66 | 100 | 100 | 98 |
| L | 78,5 | 67 | 106 | 106 | 104 |
| XL | 79,5 | 68 | 114 | 114 | 110 |
| XXL | 80,5 | 69 | 120 | 120 | 116 |