The Women’s Helium 400 Regular is a superb sleeping bag from Mountain Equipment. Lightweight, versatile, and packable, it is perfect for backpacking and bikepacking adventures. Insulated with 700-fill duck down: the box wall baffle construction and women’s Alpine Fit maximise thermal efficiency. A solid two-season performer, it gives the warmth and comfort required for a UK summer spent outdoors. Mountain Equipment Helium 400 Women's Sleeping Bag - Medieval Blue