Purchased last year from the official Nanga Rakuten store. Selling it unopened because the specifications are too high for me. This is a new, unused item. Please understand that I cannot offer a discount. It will be shipped in simple packaging. Thank you for your consideration. From the manufacturer's description below: ◇ High-end model designed for use in the harsh winters of Japan ◇ UDD (Ultra Dry Down)'s high water repellency provides high performance in bad weather and humid environments ◇ Uses Nanga's original waterproof and breathable material, 15dn AURORA TEX LIGHT ◇ Protects the down from getting wet due to condensation inside the tent, even without a sleeping bag cover ◇ Boasts high breathability while being waterproof, providing a comfortable sleep ◇ Placing the zipper slightly higher reduces the entry of cold air from the ground ◇ More down is packed into the foot box, and a titanium sputtering material is equipped on the inside of the lining to warmly cover cold feet ◇ A double draft tube prevents cold air from entering through the zipper ◇ Equipping a waist tube on the waist improves heat retention by preventing heat from escaping from the lower body ◇ The use of differential box quilting prevents the down from being crushed when moving, maximizing loft ■ Color: Coyote ■ Material: Outer fabric/15dn AURORA TEX LIGHT Nylon Inner fabric/10D recycled nylon shre water repellent treatment Insulation/Spanish duck down 90-10% (770FP) Super water repellent treatment ■ Down amount: 590g ■ Size when in use: Shoulder width 90 x Maximum length 220cm (up to 180cm tall) ■ Size when stored: Φ17 x 31cm ■ Weight: 1260g ■ Comfortable usage temperature/Lower limit temperature: -8℃/-13℃ ■ Attached functions: Shoulder warmer, double draft tube, waist tube, titanium sputtering material