The Infinium models of the popular Andes series feature a 100% windproof, highly breathable 13-denier Gore-Tex Infinium surface fabric. The TILT lining fabric, on the other hand, contains titanium, which is used to reflect the user's heat back. The bag is filled with 800fp down. Different down compartments have been used in different parts of the bag to keep the insulation where it is needed. The EN standard test doesn't give proper readings for this category of sleeping bag, so Rab has instead stated that their own comfort limit for this bag is -28 ° C. This is not the extreme rating, but the coldest temperature you should still be able to sleep in. - Bag shape: Rab Wide Mummy: wide and spacious - Suitable for max. 195 cm users, circumference 160 cm at the shoulders, 136 cm circumference at the hips, 108 cm circumference at the foot box - The down is treated to be moisture-resistant - the bag does not lose its insulating properties nearly as easily as those filled with ordinary down