

+ Tops, Tees, Blouses, Hoodies, Outerwear, and Dresses
| KAKUUBASIC | XS | S | M | L |
| 44 | 55 | 66 | 77 | |
| US/Canada | 2 | 4 - 6 | 8 – 10 | 12 |
| UK | 6 | 8 – 10 | 12 – 14 | 16 |
| EU | 32 | 34 – 36 | 38 – 40 | 42 |
| Bust (in) | 32.5 | 33.5 - 34.5 | 35.5 - 36.5 | 38 |
| Bust (cm) | 82.5 | 85 - 87.5 | 90 - 92.5 | 96.5 |
+ Bottoms, Pants, Jeans, Shorts, and Skirts
| Sizes | |||||
| KAKUUBASIC | XS | S | M | L | |
| 44 | 55 | 66 | 77 | ||
| US/Canada | 2 | 4 - 6 | 8 - 10 | 12 | |
| Waist (in) | 24 - 25 | 26 - 27 | 28 - 29 | 30 - 31 | |
| Hips (in) | 33 - 34 | 35 - 36 | 37 - 38 | 39 - 40 | |
| Inseam (in) | 32 | 32 | 32 | 32 | |
| UK | 6 | 8 - 10 | 12 - 14 | 16 | |
| Europe | 32 | 34/36 | 38/40 | 42 | |
| Waist (cm) | 60 - 65 | 65 - 70 | 70 - 75 | 75 - 80 | |
| Hips (cm) | 83 - 88 | 88 - 93 | 93 - 98 | 98 - 103 | |
| Inseam (cm) | 82 | 82 | 82 | 82 | |
| US | 24 - 25 | 26 - 27 | 28 - 29 | 30 - 31 | |
| EU | 32 - 34 | 36 - 38 | 40 - 42 | 44 - 46 | |
| UK | 24 - 25 | 26 - 27 | 28 - 29 | 30 - 31 | |