We are sorry to hear that the blazer is too small. If you are 6'4" and 170 lbs we believe that the medium tall would be a better fit. The medium-tall will also have a bit more length in the sleeves. 😊
“This was the FIRST blazer I've ever purchased "off the rack" that actually fit! It has a nice, modern fit without being too tight and the sleeves are actually long enough. I find that more formal wear like this is very hard to find in tall sizes, so I'd definitely recommend this.”
“My son loves the fabric and look of this blazer. The only issue is that the waist comes in too much. I looks more like it would be a woman's blazer. He has a MT, the LT is too big on him, and also has a smaller waist.”