Mammut Sphere UL Winter Sleeping Bag: 5 Degree Down
Mammut Sphere UL Winter Sleeping Bag: 5 Degree Down

Thanks to its ProlightTX fabric, the Mammut Sphere UL 5 Degree Down Winter Sleeping Bag is exceptionally light, compressible, and more importantly, warm. One of the lightest bags in Mammut’s line of bomber sleeping bags, this winter bag will keep you warm when you’re exploring cold and high…

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