Sea To Summit Ultralight Women's SI Sleeping Mat RegularDesigned to meet the unique needs of female physiology, our Womens Ultra Light S. I. Mat provides increased warmth and sleeping comfort in a small and light package. The foam used in our Womens specific Delta Core V graduated pattern uses a mix of smaller holes and solid foam under core body zones for extra warmth where women often feel the cold most. Featuring a womens specific shape that is wider at the hip and narrower at the shoulder, the anti