The lightest sleeping bag in the world! Yeti Passion models are the fascination of the “Nothing“ that belong to the world’s lightest sleeping bags. With their ankle-length zip fastener, lowest weight and pack size there is  plenty room left for sleeping. With a weight of 25g/sqm the Nordisk Rip Stop nylon fabric is still extremely tearproof. Thanks to the calendered manufacture of the fabric, good wind- and water-proof characteristics are achieved as well. The high-quality filling is gained from extremely large Masurian (Poland) breeding gooses. This provides for an achievement of loft values of 900+ cuin at a maximum downs/feathers ratio of 97/3. Due to their uniqueness, these raw materials are available only to a limited extent. For this reason, these sleeping bags are produced in limited quantities only. Comprehensive tests of the used fabrics offer the user a maximum of safety and comfort for skin-friendly fabrics and fillings.