*All prices displayed on www.insport.com.au are exclusive only to the online store and does not apply in-stores.
| ALPHA SIZE | NUMERIC SIZE | AGE | WAIST (cm) | HIPS (cm) | HEIGHT (cm) |
| XS | 7-8y | 6–7 | 59.5–61.5 | 68.5–71 | 122–128 |
| S | 9-10y | 8–9 | 61.5–65 | 71–74.5 | 128–137 |
| M | 11-12y | 10–11 | 65–69 | 74.5–79.5 | 137–147 |
| L | 13-14y | 12–13 | 69–72.5 | 79.5–84.5 | 147–158 |
| XL | 15-16y | 14+ | 72.5–75.5 | 84.5–89.5 | 158–170 |