DESMIIT Men's Cotton Colorful Low Rise Brief Pack of 7 The material of different Because of the Asian size is about 1 size smaller than US size.For example: usually the Asian M is equal to the US S, and our item tag is printed in Asian size only.When you receive the item,please feel ok, it is just your size. Material: 75% Cotton, Note:Please check the Sizing info Before buying! Feels like you're not wearing any underwear at all Terry elastic back and functional fly for ease Ideal for backpacking, outdoor work, fishing, golfing, urban exploration, and even just lounging