For girls:
- pink long-sleeved rompers (perhaps with a skirt)
- pink skirt
- white or pink tights
- pink pullover (if necessary)
- beige ballerinas, optional leggings.
Appearance requirements:
- girls' hair must be made into a bun.
- hair embellishments (decoration) are not allowed, for safety reasons
For boys:
- black t-shirt
- black leggings or stretch pants
- black shoes or ballerinas
- black socks
You can buy everything in store:
https://www.decathlon.be/
