So,e schools don't allow any branding, others don't ,ind. it depends on your school.
Is there a reason why it ends to be a branded set?
I'd also consider whether it's going to be left at school,or not. Pre covid children at my school left their PE kit on their peg in a one bag all week, tbh many all half term. They changed in and out of them in school. This often led to,things going missing, but parents might not realise for a few weeks. Will you mind if a more expensive goes missing and can't be found?
These days at my school children go in wearing kit on PE days so it isn't as bad, though on warm days tops etc are often removed, or things get removed if a child has a water or toilet accident. Obviously this can lead to things being lost.
Most of our children send in/wear very cheap and plain kit items, such as from a supermarket or Primark tbh. Then it isn't quite such a big deal,if,items walk.
Whatever you buy make sure every item is clearly labelled with name and ideally class number. It won't prevent everything going missing but can help,us reunite them again.