Problem 1 - Size

I am 6ft2 (186cm)

I am built like a rugby front rower, with big chest and back and wide shoulders.

I bought the X-Large Regular. I am wearing it as I type, with a pair of blue boxers and nothing else.

Around the chest and back the jacket fits almost perfectly, though perhaps a tiny bit bigger would be better.  But there's no strain on the fabric around the front top button when I do it up, so it's ok.

What is weird is the jacket arms.  Now I admit, I have long, powerful, muscular arms.  I usually select '44L' (long arms) when it's an option.

With this, the only option was 'Regular', and let me tell you, if I put my arm in 'arm wrestle' position (common for me) the sleeve is halfway down my arm.....looks like I rolled it up.  With my arm straight the sleeves just reaches the bump on the side of the wrist.  Hope the tailor can extend them!

Problem #2

It is a very formal looking jacket.  Perhaps I should have studied the pic on Amazon closer before buying...but I wanted something fairly formal to pair with jeans.  Something I could wear to work on Friday and still look decent.

But this......if I wore this to a party someone could say 'Hey Ozbloke! Did you steal your dad's tuxedo jacket!' and I would have no reply because it's kinda true.

I wanted a sportscoat.  Not something that looks like it could be the top half of a (strangely formal) suit....