I think you'll find that most dry tops have a very tight neck fit and need to be stretched to loosen them up. IR in particular seems to have a very tight fit on the neck. i bought an XXL (by mistake) - I am 6'0' - 200 lbs - and a 17" neck and the neck gasket was still way too tight. Go for it and buy the top that fits you and I bet you won't have any problem with the neck gasket being too loose. You might get lucky and not have too stretch it out. TP