The new Passion One is a real lightweight in the world of sleeping bags. It is the lightest out of already easy-to-carry-and-pack line of lightweight sleeping bags that include Passion Five weighing from 690 grams and Passion Three weighing from 465 grams. The incredibly compact sleeping bag gets down to the size of a grapefruit when packed, measures only 12 x 12 x 21 cm and weighs just 265 grams with a comfort temperature of +12°C. Built from the specially processed goose down that conforms to Oeko-Tex Standard 100, the sleeping bag is encased in material woven from 1,000 km of yarn weighing just 1/20th of human hair. This is the water-repellent, wind-resistant, breathable and extremely strong material. The temperature specs of Passion One are Comfort +15°C, Limit +12°C, Extreme -1°C. Other models from Passion line of lightweight sleeping bags from YETI achieve a rather astonishing Comfort Temperature of -7°C. Prices start from 300 €. Previously, Light Year 25 sleeping bag.