This is from the Feathered Friends description: We made a favorite even warmer. Take our most popular 20 degree model, the Swallow, add a full collar and additional fill, and you have a rock-solid three-season bag that packs remarkably small while maintaining room to sleep comfortably. The Lark represents an excellent option for those who sleep on the cold side or push their adventures well into the colder evenings of spring and fall. Pertex® Endurance® 10 denier water-resistant/breathable fabric. This Lark is size regular, and fits up to 6′-0. Color is Titanium with dark blue interior and blue accent. It is in like new condition. Mummy shape (average width) with #5 YKK two-way, separating zipper with locking sliders. Full collar provides an effective seal of down around your neck to trap the heat. Trapezoidal footbox allows your feet to fall in a natural pose without compressing the sides. Continuous baffles let you position the insulation where you need it. 3D contoured hood opens wide for warm nights and cinches tight when the temps start to drop. Generous draft tube prevents cold air from seeping past the zipper. Overlapping dual-webbing zip guard guides the fabric away from the zipper and eliminates the need for a stiff or heavy fabric layer that can interfere with the draft tube seal. Includes storage bag & stuff sack. Reg 6′ 0 / 183 cm. 60″ / 56″ / 38. Reg 20 oz / 567 g. Flite 15 denier ripstop nylon. Made in Seattle, USA of imported materials. Reg 31.3 oz / 887 g. Sleeping Bag Shell Fabric. 10ºF / -12.2ºC. The item “Feathered Friends Lark UL 10 Down Sleeping Bag” is in sale since Friday, July 20, 2018. This item is in the category “Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags”. The seller is “wyo_philo” and is located in Laramie, Wyoming. This item can be shipped to United States.