“We have an assortment of original underwear (red underwear) made in one color, red, which is believed to have moisturizing effects in Oriental medicine. We have a wide range of products from women’s half-tops and loose-fitting underwear to men’s trunks and briefs, as well as socks, belly rolls, and loincloths. I also recommend the 100% cotton pants, although they are not “red. They have a deep crotch and are very comfortable to wear even when your lower abdomen is showing.