In fact, there is no need to wear a swimsuit when drifting, and it is best not to wear a swimsuit inside, because drifting is usually in summer, and the sun is very toxic and easy to get sunburned, so try not to expose your skin.
Moreover, in addition to not wearing a swimsuit when drifting, you need to take sun protection measures, such as applying sunscreen and wearing long-sleeved trousers.