ZIHAN Men's Low Rise Milk Silk Tie Rope Boxer Shorts 90% Terylene and 10% Spandex Waist: US XS=China S:26"-29"; US S=China M:30"-32"; US M=China L:33"-35" 100% Brand New and High Quality Milk silk is a term given to silk that is derived from milk.The fabric with a rich, velvety texture and feels very luxurious on the skin Sporting, training or daily wear You select size is US Size,but we send product tag size is China Size.The China Size is bigger one size than you order.Because of the China size is about 1 size smaller than US size.And our company product tag is printed in China size only.For example,you order size "M", we will send you the item with China label size "L".Thanks!