I ordered a L/XL instead S/M thinking, well I'm 6' and wear a size 42 that a large would fit. It was too big. The front and back panels were loose. I couldn't adjust it to make it any tighter. If you have a large gut or a 46" chest then the L/XL would fit but if you have a slim/athletic build then try a size smaller. I'm going to try the S/M. Seems to have a lot of possible adjustments to make the L/XL LARGER. So if you're a big guy... It appears to offer a lot of protection. I hope to never need to find out how much.
My big foot measures 13.5" US.
I bought size 14/49 US/Euro. They fit me perfectly. They are easy on and off. They are very well ventilated. I suggest wearing long, over the calf socks because the top of the boot does not have a collar like some types of boots do, so in the sport bike riding position, the back of your calf will get rubbed a lot and become sore. Long socks take care of that.
These gloves are well worth the money. Three years old and 27,000 miles later. I still wear them on my daily commutes.
Only sign of wear is the small scuff from the curb, and a crack in the plastic air vent from an impact with a car changing lanes into me. I've hand washed them about 6 times. And they still look almost new.
Hope this helps your decision.
This is my first track suit, and I haven't even ridden with these yet, but I wanted to comment on what I do know about this suit.
Im 6', 205lbs and after trying on 8 or 9 one piece leathers I got this Cortec in an XL. I would say its a comfort fit. But a LG was too short on the torso and sleeves.
The suit feels well made and I didnt notice much difference between it and suits costing $1000 more. The one drawback I would call out is the back protector is a foam pad. I will be getting a hard back protector before hitting the track.
Other than that, Im very happy with the purchase. I think its a great value.