I'm planning on getting an alpinestars jacket from the us http://cgi.ebay.com/ebaymotors/ws/eBayISAPI.dll?ViewItem&tc=photo&item=7936572773&category=6750 I'm just a bit confused on the sizing. I've tried on an rjays jacket and 38 is a real snug fit for me. According to the ebay a small would be suitable for 36/38, and a medium is suitable for 38/40.. If you goto the link you'll see what I mean. Does anyone know what would be a better fit?