BeninosMens Blazer Jacket Slim Fit Casual One Button Sport Coats

Im 5'5 weight 125lb what size?

Im 5'6 & weigh 125 i wear smalls in shirts hoodies & jacket. I dont know if i should get a small or medium in this jacket because of the comments help

I'm 5'9 210 lbs broad shoulders what size should I order

Is it machine washable?