Down booties have become more than just a luxury, and the Down Booties by Sierra Design for women set the bar for design and comfort. They are one of the lightest, most packable amenities that you can ask for around camp or home. The high ankle profiles on the Sierra Design Down Booties deliver big on warmth, but you can also loosen the adjustable draw cords for a little venting. The cushy, non-skid nylon tread soles are equally at home during camp forays beyond the warm confines of your sleeping bag, or on a trip to the driveway to grab the Sunday paper.