These are Level 6 extreme cold & wet weather GORE-TEX pants that were used in the US Army. You wear the waterproof pants over other cold weather layers. The pants cuffs are zippered halfway up the pant leg to allow the wearer to don and doff them while wearing boots and other layers. There are two waist pockets with hook and loop flap closures. The knees are reinforced so as to not wear through the GORE-TEX.