dI have looked at a lot of photos and I have gone through the series a couple times now lol. I noticed they use 3 different shirts. Two of the shirts are mcdavid ,the 8800 and the 8840.The 3rd is just an all black one that could also be a mcdavid. as for the M on the chest im pretty sure they remove it
8800 the two red stitch lines go up the torso then join at the arm pit itself
8840the gray stitch lines go up the torso until they curve joining together about 3/4 and then continue until reaching the torso
black one
8800 the two red stitch lines go up the torso then join at the arm pit itself
8840the gray stitch lines go up the torso until they curve joining together about 3/4 and then continue until reaching the torso
black one