I've been replacing cotton underwear bottoms with synthetic materials over the past year. This was motivated by my old bottoms developing rips and one where the a$$ end was completely non-existent...I digress. I occurred to me that men's shorts are moving toward the same type materials as women's under garments. It took us a long time to figure out that some materials just feel better down there. Amazon had a good deal, $22 for 4 units and I order one and then another 4 later. Much better feel.