I thought it really annoying that people who sell clothes, do not list important sizes in description. An item listed as simply 'Large', doesn't help, as every large is highly unlikely to be the same size, especially when it comes to designer sizes.
Following on from a previous review, where I vented my frustration at people who do not list relevant sizes in their descriptions, I've now come across some people, who when asked for sizes, seem lost at how to measure the item or more annoyingly, just don't even bother to answer the question. I had been watching 14 various items of clothing and asked 8 of the sellers for exact dimensions (mainly chest size, pit to pit). I received 5 answers, giving the correct details required, but the other 3 sellers failed to respond, despite 2nd requests for info. It is no wonder that the goods went for a small amount and in one case, didn't even sell. Incidentally, some of the L sizes turned out to be bigger than some of the XL sizes.
How much trouble is it to answer a simple question or to run a measuring tape over the item in the first place, before listing!