From the Maker

These trousers are made of "Uniform Twill" fabric, the Mercerizing process, which is passed through low-temperature caustic soda at the fabric stage to strengthen the fabric and give it a glossy and crisp appearance. The "Uniform Twill" Fabric is a fabric derived from the uniform of THE U.S. MILITARY ACADEMY AT WEST POINT in New York State.

Size Guide (unisex) - 

0/XS, 1/S, 2/M, 3/L, 4/XL

Mens model wears a size 4.