ARC'TERYX Nuclei Pant XS Black Purchased from an authorized retailer about two years ago. These pants are quite warm. Used infrequently, in excellent condition with no noticeable stains or scratches. I used them as outerwear (overpants) for warmth when traveling to snowy areas, but they were almost too warm for me. The side zippers open fully, allowing you to put them on and take them off while wearing boots. I am 164cm tall, weigh 60kg, and have a 78cm waist, and the waist fit perfectly. The hem is quite long for someone as short as me, but they effectively block out cold air from the ankles. Non-smoker. No pets. Thank you.