I love the look of a white top with jeans. Unfortunately, my white tees, though thick, cannot conceal my bra lines. I picked up a few of these in the beige-y color and now I won't wear white without them. As a bonus, they add a nice climate control layer to my outfits--wicking away sweat in the summer and a bit more warmth in the winter. I'll probably pick up a few more in black for my darker tops, not for the concealment, but for the luxury undershirt factor I've grown to love.