The Cambridge high rise trouser is a 55% polyester 45% wool mix. The high rise on the trouser means that there is an extra 2 inches on a standard rise of a normal trouser (differnce between the inside seam and the outside seam) so you can wear them higher up on your waist. It is a classic composition of being plain fronted with belt loops but also with button side adjusters, 2 side and 2 hip pockets. Machine washable.