These trousers are a wool and nylon combination. They are very classic in their style. They are a typical straight leg trouser. They are offered in olive drab green (ARMY) and an evening blue (RAF). The green is a flat front waist with a brass zip front. The blue is pleated with a button fly. They are excellent outdoor pants, yet by the classic look of them, they can be worn as a casual look as well. Please specify your color of choice.