Fengzel Outdoor Sleeping Bag for Down Premium Down Fully Leg Minimum Temperature of Ideal for Emergency and Extreme Cold Down Fill Mummy-Style Two,

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[Mummy-style down sleeping bag with excellent heat retention] The head and collar are equipped with adjustable dolo coats, which when tightened completely envelop the entire body for excellent heat retention. There are no unnecessary gaps to prevent heat from escaping, and the bag is also excellent at keeping out the cold and wind, making it a spacious mummy-style down sleeping bag for two people that will give you a warm and comfortable sleep. Warm 93% Down: Made with high-quality feathers harvested from the chest and belly of waterfowl raised in down-producing areas with extreme temperature fluctuations. Through a meticulous feather purification process that includes dust removal, washing, drying, and cooling, the down is woven into large, intertwined balls of feathers radiating from numerous, ultra-fine barbs. This luxurious 93% down is packed with air for superior warmth. It's also light and soft to the touch, offering excellent comfort, elasticity, and bulk. Multi-functional Fabric: The sleeping bag is made of 50% nylon and 50% polyester with a strong water-repellent finish, which prevents the down from escaping and prevents it from getting soaked by moisture from your outer layer. It locks in the warmth of the feathers for excellent insulation. It also boasts the fabric's inherent beautiful luster, excellent breathability, lightness, softness, and a gentle feel against the skin, making it comfortable and lightweight. [Opens from either side] The sleeping bag has zippers with pull tabs on both sides, allowing you to open it from the side, giving you the comfort of sleeping on a futon. Both sides open and close smoothly, making it very convenient for entering and exiting, ventilation, and temperature control. [Legs Allowed] The zipper with pull tab allows you to put your legs out all the way to the bottom, so you can open the zipper when it's hot and sleep comfortably. In cold seasons, close the zipper to wrap your whole body and keep warm.