Under Armour Black and Gray V Neck Tee NO TAG

Under Armour Black and Gray V Neck Tee NO TAG. Comparing this shirt to others I have in S and in L, this appears to be a M. However, the tag was cut out from the inside and there is no mark on the back between the shoulders on the inside of the shirt. I recognize that this may pose questions for the buyer -- PRICED ACCORDINGLY. Shirt itself is in excellent condition otherwise.