CSA Mounted Trousers are the same as the foot trouser style except they have an extra layer of wool in the seat and inner leg area. Side seam pockets are standard. Options for NCO trouser stripes are available at extra cost. Trouser legs are left un-hemmed so that you may hem them the length that you wish.21 ounce Medium Gray wool is standard. Other colors available for additional cost. Researched, documented and made to exacting standards for authenticity!