are things that you wear (always plural)
• I need
some new clothes. • Do you ever wear your sister's clothesUse clothing to talk about a particular type of clothes or when talking about making or selling clothes(is not used much in spoken language)
• Special protective clothing is worn. • a clothing manufacturer
In formal English, you can use garment or piece/item/article of clothing to refer to one thing you wear
• a long velvet garment • a discarded article of clothing But it is more usual to name the particular thing you mean
• He was wearing a long coat (NOT long garment).
Cloth is the material that clothes are made from
• a suit made from fine woollen cloth