I wear a small...28 in. waist. I ordered a small. And small seems a bit snug. They do stretch but I'm sure after a few washings they might shrink. Either way, I prefer a little space. Order mediums. I could not get these in mediums. I love the colors. I am not suggesting you to order one size higher. Jockey Pocco briefs has more space in them than these do. And they come in the same colors as these do. I love them all.