WOMEN'S technical t-shirts sizes
| Size | Chest Width | T-shirt Length |
| XS | 40 cm | 57 cm |
| S | 44 cm | 60 cm |
| M | 48 cm | 62 cm |
| L | 52 cm | 64 cm |
| XL | 56 cm | 66 cm |
MALE technical t-shirts sizes
| Size | Chest Width | T-shirt Length |
| XS | 47 cm | 67 cm |
| S | 49 cm | 69 cm |
| M | 51 cm | 71 cm |
| L | 56 cm | 73 cm |
| XL | 60 cm | 75 cm |
| 2XL | 64 cm | 77 cm |
CHILDREN'S technical t-shirts sizes
| Size | Chest Width | T-shirt Length |
| 2-5 yrs (5XS) | 33 cm | 39 cm |
| 5-8 yrs (4XS) | 37 cm | 47 cm |
| 10 yrs (3XS) | 41 cm | 55 cm |
| 12 yrs (2XS) | 43 cm | 63 cm |