I bought this three years ago. I've used it about three times. One of them doesn't have a cover. Brand: CAPTAIN STAG Color: Green Occupancy: 1 person Shape: Cone Season: Summer Temperature rating: 15°C Storage size: (approx.) Outer diameter 20 x height 38cm Material: Outer fabric/Polyester 100%, Lining/Polyester 100% (microfiber), Filling/Polyester (hollow fiber) 600g Comfort temperature: (approx.) 15°C~ Item weight: 0.91 kg Features: Simple and comfortable. Water-repellent and resistant to water and dirt; Temperature adjustment with zipper. Can be connected for two people.