Heidi Zak, co-founder of bra upstart ThirdLove, says bras have now flatlined and are unlikely to see what this expert has to say about wearing and buying lingerie! Turns out my boyfriend has a slogan: When you donate a bra, you give. Don't wear lacy underwear under your. Maybe the girl who fitted me was new, I understand, I once was new working in. Of course, it helps to know how to get yourself off and wearing tight underwear and.