Any article of clothing can be an irritant. Using a sensitive detergent with no colors or dyes can reduce irritation. White shirts should be quite comfortable though if made of 100% cotton and washed with care.
The best place I found to purchase clothing is a site known as king size direct. This site has a wide variety of clothing for all sizes of men. The company that has king size direct has other online...
Adding creative details to a plain white shirt, offers a fun craft for children and adults. You can use fabric paint or permanent markers as well as fabric stamps, to add a variety of designs.