I wear a v-neck undershirt. It's not deep, but I never noticed it until I switched to Ledbury. Eventually I'll probably get annoyed enough to buy deeper v, but I can't stand wearing a dress shirt with no undershirt. A polo shirt, sure, but a dress shirt - particularly a white shirt - no way. It's probably because I've lived in
two of the most humid cities in America. D.C. in the summer is ridiculous.