Ds is tall - coming up towards 6ft at 14
and I've noticed his t-shirts are getting too short and showing a bit of his tummy. He is not slim and obv wears adult sizes. His go to t-shirts are H&M basic ones which he finds comfortable otherwise. He has sensory issues and not having a neck label or scratchy seams is important for him.
I would like to find a new source of t-shirts which come up longer but I don't know where to look. Or if any other style of the H&M ones come up longer and would be better for a tall lad. He has quite a long body, as well as being generally tall.
I suspect also that the basic H&M ones may be shrinking a little in the tumble dryer, but I have no option of not using it over the wetter months.
He's not keen on designs - prefers plain black.
Any ideas?