Alfani at Macys! Highly recommend them.
Hanes Premium tagless v-necks for the price I cant go wrong.
Expecially with my water issue. I have well water and it well has alot of minerals and destroys my white shirts after about 10 washes I have off white/yellow shirts. So $10 for 3 for undershirts is helpful. Bleach only makes it worse. It reacts with the iron and other crap and "rusts" my clothes.
I do however have an amazing rag collection which makes cleaning wheels and doing oil changes easier.