Short Fluid Twill Mason Trousers | BlackWe listened: the icon tailored trouser, now available with a shorter trouser length. Our best selling Mason block is medium high rised, slim fitting throughout the hips and thigh with a slight kick flare hem and is cut from a virgin wool blended European fabric with a twill weave. Zip fly front with a hook and bar fastening, side pockets and back jetted pockets. Available in multiple colours with matching jackets.