Decided during all this recent closet analysis that I want to add a few basics into the wardrobe. I know I can buy camis pretty much anywhere but the cheaper ones I like for color are more apt to lose shape/etc after a season or two.

Looking for some high quality (meaning will last beyond a season/year even) camis and tee/tank in white and black. The camis need adjustable straps if they are thin straps.
Cotton or silk blend?

I do like a tank that does not have printing on the "label" area - you know how they put the maker's mark on the back of top lately? - so that I can reverse them if I want a higher neckline for modesty. It also gives you a boatneck look under a cardi.

Where do you buy good, lasting basics?