To make sure you don't pick the wrong size, it's always a good idea to take, for example, your favourite t-shirt and measure it as follows:
Lay it out flat on a bed, making sure it's well stretched. Use a tape measure or ruler to measure its width, from armpit to armpit (Measurement A in the drawing).
Now, measure the height of the t-shirt from the neck down (Measurement B in the drawing).
With this height and width information, refer to the table below (for the specific t-shirt model you want) to find the measurements that most closely match yours.
IMPORTANT: Please note that measurements may vary by +/- 1cm.
Men's Sizes
Men's t-shirt, long sleeve
 | XS | S | M | L | XL | XXL | 3XL | 4XL | 5XL |
| 48 A (cm) | 50 | 53 | 55 | 58 | 61 | 65 | 68 | 72 | |
| 64 B (cm) | 69 | 72 | 73 | 75 | 78 | 79 | 83 | 88 |
Oversize t-shirt
| XS | S | M | L | XL | XXL | 3XL | |
| A (cm) | 54 | 57 | 61 | 64 | 68 | 71 | 75 | |
| B (cm) | 68 | 70 | 72 | 74 | 76 | 78 | 79 |
Sports T-shirt
 | S | M | L | XL | XXL | 3XL | |
A (cm) | 48 | 51 | 54 | 57 | 60 | 61 | |
B (cm) | 70 | 72 | 73 | 74 | 75 | 76 |
Men's t-shirt, short sleeve, V-neck
 | S | M | L | XL | XXL | |
| A (cm) | 50 | 53 | 56 | 58 | 61 | |
| B (cm) | 70 | 72 | 74 | 76 | 78 |
Men's t-shirt, short sleeve, baseball style
 | S | M | L | XL | XXL | |
| A (cm) | 47 | 52 | 54 | 58 | 60 | |
| B (cm) | 62 | 67 | 67 | 73 | 75 |
Men's t-shirt, long sleeve
 | S | M | L | XL | XXL | 3XL | 4XL | 5XL | |
| A (cm) | 51 | 55 | 57 | 59 | 64 | 69 | 70 | 72 | |
| B (cm) | 69 | 70 | 74 | 75 | 78 | 78 | 80 | 80 |
Men's t-shirt, Tank top
 | S | M | L | XL | XXL | |
| A (cm) | 44 | 47 | 50 | 53 | 56 | |
| B (cm) | 66 | 68 | 70 | 72 | 76 |
Women's Sizes
 | XS | S | M | L | XL | XXL | 3XL | |
| A (cm) | 48 | 51 | 54 | 57 | 60 | 63 | 66 | |
| B (cm) | 67 | 68 | 69 | 70 | 71 | 72 | 73 |
Unisex sweatshirt
 | XS | S | M | L | XL | XXL | 3XL | |
| A (cm) | 48 | 51 | 54 | 57 | 60 | 63 | 67 | |
| B (cm) | 70 | 71 | 72 | 73 | 74 | 75 | 76 |
Unisex Pyjamas (T-shirt sizing)
| XS | S | M | L | XL | XXL | 3XL | 4XL | |
A (cm) | 45 | 48 | 51 | 54 | 57 | 60 | 63 | 66 | |
B (cm) | 67 | 69 | 71 | 73 | 75 | 77 | 79 | 81 |
Unisex Pyjamas (Trouser sizing)
 | XS | S | M | L | XL | XXL | 3XL | 4XL | |
A (cm) | 33 | 34 | 35 | 37 | 40 | 43 | 46 | 50 | |
B (cm) | 105 | 107 | 109 | 111 | 113 | 115 | 117 | 119 |
Women's Sizes
Womens classic t-shirt
 | S | M | L | XL | XXL | 3XL | |
| A (cm) | 41 | 44 | 47 | 50 | 53 | 56 | |
| B (cm) | 61 | 63 | 65 | 67 | 69 | 71 |
Women's Sports T-shirt
| S | M | L | XL | XXL | |
| A (cm) | 41 | 44 | 47 | 50 | 53 | |
| B (cm) | 61 | 63 | 65 | 67 | 69 |
Women's racer back tank top & Loose Fit
 | S | M | L | XL | XXL | 3XL | |
| A (cm) | 44 | 47 | 50 | 53 | 57 | 60 | |
| B (cm) | 62 | 64 | 66 | 68 | 69 | 71 |
Deep collar women T-Shirt & Loose Fit
 | S | M | L | XL | XXL | |
| A (cm) | 47 | 49 | 51 | 56 | 60 | |
| B (cm) | 69 | 71 | 73 | 75 | 77 |
Women's, mandarin collar
 | S | M | L | XL | |
| A (cm) | 40 | 42 | 46 | 48 | |
| B (cm) | 56 | 59 | 60 | 62 |
Women, long sleeve
 | S | M | L | XL | XXL | |
| A (cm) | 39 | 42 | 47 | 48 | 52 | |
| B (cm) | 59 | 62 | 64 | 65 | 68 |
Unisex sweatshirt
| XS | S | M | L | XL | XXL | 3XL | |
| A (cm) | 48 | 51 | 54 | 57 | 60 | 63 | 67 | |
| B (cm) | 70 | 71 | 72 | 73 | 74 | 75 | 76 |
Kids' Sizes
Kids' t-shirt, short sleeve (Sizes by Age)
| 1/2 | 3/4 | 5/6 | 7/8 | 9/10 | 11/12 | |
A (cm) | 30 | 33 | 36 | 39 | 42 | 44 | |
B (cm) | 40 | 44 | 46 | 49 | 53 | 57 |
Kids' T-shirt, long sleeve (Sizes by Age)
 | 3/4 | 5/6 | 7/8 | 9/11 | 12/14 | |
A (cm) | 29 | 32 | 36 | 40 | 44 | |
B (cm) | 42 | 45 | 50 | 54 | 57 |
Kids hoodie (Sizes by Age )
 | 3/4 | 5/6 | 7/8 | 9/10 | 11/12 | |
| A (cm) | 36 | 38 | 40 | 43 | 46 | |
| B (cm) | 47 | 50 | 53 | 57 | 61 |
Baby's bodysuits (Sizes by Age)
 | 3 months | 6 months | 9 months | 12 months | 18 months | |
A (cm) | 19 | 21 | 23 | 25 | 27 | |
B (cm) | 36 | 38 | 40 | 42 | 44 |