Suitable for 4-season use. Double-protection design combines a polymer-coated down fill with waterproof/breathable fabric at the hood, sides and footbox, the areas likely to touch a damp tent wall. Designed to fit an adult’s body, this bag offers increased room at hips, decreased room at shoulders and extra insulation in critical heat-loss areas. Water-repellent 800-fill and 1200-fill power duck down offers superior loft and warmth. Ripstop nylon shell also features a durable water repellent finish to further protect the down fill. Performance fit keeps weight low and thermal efficiency high. NatureHike in-the-round design puts vertical baffles in side walls to wrap you in warmth and create a better fit than bags that use only horizontal baffles. Differentiated hood and neck drawcords simplify adjustments. The 4 season super warm sleeping bag includes a nylon stuff sack and a large cotton storage bag. Ultralight Single Person Sleeping Bag 4 Season -15? / 5? Use Climbing Camping. Dimension:210 x 80cm / 82.6 x 31.4in. Shell: 15D Waterproof Nylon. Fill: 28.2oz(800g) White Goose Down(90% Down & 10% Feather). Inner Shell: 20D Nylon. 800g White Goose Down. Comfortable Temperature: 23 to 50 Fahrenheit Degree(-5 to 10 Degrees Celsius). Limiting Temperature: 14 to 41 Fahrenheit Degree(-10 to +5 Degrees Celsius). Weight: 1460g / 51.49oz. 1200g White Goose Down. Comfortable Temperature: 5 to 32 Fahrenheit Degree(-15 to 0 Degrees Celsius). Limiting Temperature: -4 to 23 Fahrenheit Degree(-20 to -5 Degrees Celsius). Weight: 1940g / 68.4oz. Package Includes:1 x Super Warm Mummy Sleeping 4 Season. Our working time is: 7:00am-7:00pm (GMT+8 times), that is 7:00pm-7:00am of GMT-5 time. As we are in different time zone, our customer-service workers will reply you within 24 hours after receiving your message. Please leave feedback after receiving your item & we will do the same positive. Thanks for your looking! The item “Ultralight Single Person Sleeping Bag 4 Season -15 / 5 Use Waterproof Camping” is in sale since Tuesday, August 29, 2017. This item is in the category “Sporting Goods\Outdoor Sports\Camping & Hiking\Outdoor Sleeping Gear\Sleeping Bags”. The seller is “belindawen” and is located in Beijing. This item can be shipped worldwide.