SiikWorld Men's Low Rise Boxer Brief Modal Trunk Pack of 8 89% Modal + 11% Spandex Great value! 8 Color in one Pack 8 color, every day was different:Black,White,Orange,Grey,Green,Blue,Bright Blue,Dark Blue Soft material that makes you feel very comfortable Modal is very soft and popularly used for household and clothing textiles. Modal becomes a substitute for cotton. However, it has some significant advantages that people enjoys over cotton. -- from Wiki Because of the Asian size is about 1 size smaller than US size. Sizes available: US XS (Asian Tag S), US S (Asian Tag M), US M (Asian Tag L),US L (Asian Tag XL)