The Marker Women's Saturn GORE-TEX® Pants are made out of 100% Polyester; it is breathable, waterproof, and windproof. Adjustable internal velcro waistband tabs, and lower leg gusset with internal powder cuff and gripper elastic keep out the cold. Full seam sealing keeps out the moisture. Articulated knees give you a full range of motion when you are out trekking through the cold. The Inner thigh ventilation with YKK zippers and power mesh backing shed excess heat and scuff guards protect against boot damage on the slopes. Front and back hand pockets as well as the leg pocket are lined with super soft brushed tricot.