This is a cool and simple way to transform a tshirt with a logo that you want to remove. Or start with a basic tshirt like this one here from shirtspace.
Mark out your vneck using tailors chalk around the logo and cut.
Don't cut the collar though just cut along it.
Pin mesh fabric that to fit.
Zigzag stitch along the edge. Cut excess of the mesh fabric off.
Remove sleeves. Cut next to the served edge so you don't have to finish the edge.
flip shirt inside out. Fold the shoulder over towards the collar as shown in the photo and pin.
Tack into place by sewing along the existing shoulder seam…where the yellow arrow is.
Now it should look like this.