I just spent several hours at our large local mall (BR, AT, Loft, Nordstom's, Madewell, JCrew, etc) looking for a plain white TShirt that was substantial enough to be without a camisole. The only ones I could find were pretty see-through and would require layering which, since I live in a hot climate, defeats the purpose of the TShirt. Any recommendations for opaque white tees? (I should add I am petite- usually an XSP or XXS regular). Thanks in advance for any help.