6’2″ and built like a dray horse. I find that I have to try things on if possible. However there are some brands that I know fit e.g Endura shorts but definitely not Endura tops which I can only assume are an “athletic” fit.
P.S Count yourself lucky, one of my mates is 6’8″ and has to buy whatever fits no matter the colour or cost.Sometimes it’s like riding with an expensively dressed Timmy Mallet!