Do Unlined Bras Show Nipples? Shopping for comfortable unlined bras could sometimes get tricky for women. Their main concern is getting bras that hide nipples. So what is an unlined bra, and how does it differ from other types of bras? An unlined bra is a type of underwear that has no attached padding or any lining.Do unlined bras show … [Read more...] about Do Unlined Bras Show Nipples?