This is a male 'Risan' beach wear pair of purple crinkled fabric trousers as seen in the Star Trek: Deep Space Nine episode 'Let He Who is Without Sin…'.
The 'Deep Space Nine' sewn-in tag seems to read 'Ron Ravetti’.
Though this was sold to me from a fellow collector it did not come with a COA. However, it was part of another IAW lot and is picturedin the online auction archive: http://startrekpropcollector.com/trekauctions/item.pl?i=8146
