This post is for a brand new with tags Alpinestars GP Plus race suit size 40us/50eu. I tried it on and it's just slightly too tight around my calves and forearms. I am 5'10 155lbs with an athletic build. $950 shipped!
Where are you located? I have size 42 RC-1 suit that's a little too big. It's a couple of years old but only been worn three weekends. I'm local to Charlotte, if your close.
5'10 but 155 ... "Athletic build" https://giphy.com/gifs/laughing-applause-mike-tyson-wWue0rCDOphOE Sent from my ONEPLUS A6013 using Tapatalk