Our coach once said, "Clothes do not make the kungfuist". So, you can train in anything, it's just a matter of will!
But sports clothing — a comfortable T-shirt and comfortable pants — is still better. It should be something you can freely move in: stretch, fall, punch and kick. Boys usually train in shorts, girls in tights or sweatpants, less often shorts.
Sports shoes are also required, better with thin soles. It is possible to buy kungfu shoes for 4000 HUF. At Sanda (Chinese box) classes we train barefoot.
For Sanda (Chinese box) you should bring your own equipment — gloves, bandages, leg protectors, later — groin, tooth, head, chest protectors. Of course, at the beginning you don't need to buy everything — there is "common use" equipment in the gym, but later — for obvious reasons — it is better to have your own, especially gloves, groin, head and tooth protection.
There are also changing and shower facilities: changing rooms are upstairs. You can ask for a locker key at the reception, there are safe-deposit boxes.
But most importantly, bring YOURSELF!