[Nutany]

IMO, for clothing related items it is the most easiest to refund. Clothes which involve technology such as those with like chargers in-built into the jacket or whatever can be done (I personally haven't done any).

An excuse that I can think of is having an allergic reaction to a certain material which is used the piece of clothing, but it clearly states what the clothing is made of on the clothing so you'd probably have a difficult time.

You could use that to your advantage, products are produced cheaply, accidents happen.