"Oh, mine was a size large - as I'm a bit more VC* than you, Mr. Tornado, you'll probably need a larger size - The Grocer"
MR Grocer...I CAN confirm that XXL was the order of choice and at no extra cost!!
Something I would mention also is that for the taller wearer, especially if your height is in the length of your back as opposed to your legs, if you know what I mean, consider a 2 piece suit as opposed to all in one, there appears to be a generic design in the length from tthe gusset to the shoulders and have found this with other makes, don't want to be singing soprano after bending down to pick something off the deck!! (Unless you're the next Aled Jones of course
Re the breathable/non-breathable debate....... I concur that lots of products advertised as "breathable" are ultimately not as imagined.
Everyday at work I have to wear workwear that is cumbersome, awkward and certainly not breathable, but generally any undergarment with good "wicking" based material will keep body dry and at constant temp. Probably find cotton long sleeved shirt and cotton trousers underneath the immersion suit will do the job admirably and you'll be dressed to dine once you remove the suit on land!!
PS: Cornish chaps.....post a link for these Trago Mills garment suppliers so we hardy chaps in't North can see how cheap we can get them
PPS: Just googled Trago Mills and found out its a shopping centre, no right thinking man goes near them
, your womenfolk must be good at picking up boaty bargains!!