The Solar Eco bags are designed for high performance and mitigation of negative environmental impact. This sleeping bag is made from recycled fabrics and Stratus? insulation, which is created from 100% post-consumer PET bottles! These bags are ideal for those who enjoy mountain bothies, backcountry adventures and trekking in cool temperatures. With a spacious mummy shape and a women's specific fit, they are a great choice for anyone looking to stay comfortable and warm during their outdoor adventures. Rab Women's Solar Eco 3 Sleeping Bag - Red | George Fisher UK