Litume Ultra Compact Summer Sleeping Bag, Velvet Lining, 630g, Synthetic Lightweight Envelope Sleeping Sack for Adults, Family, Outdoor, Camping, Travel, Backpacking, Ultralight Brand: Litume Color: Blue Occupancy: 1 person Shape: Envelope type Season: Summer Temperature Rating: Comfort: 23°C / Limit: 13°C Made in Taiwan Temperature Rating: Comfort: 73°F (23°C) / Limit: 55°F (13°C) Designed for Comfort: The adult travel sleeping bag uses soft, breathable 70D nylon fabric and synthetic insulation (polyester) with a functional design to maintain comfort throughout the night. Customized Quilting Baffles: This sleeping bag features a unique manufacturing process. It sews one layer of fabric and the filling inside first, then adds another fabric to secure it, rather than sewing all layers and filling at once. This patented technology effectively blocks cold air and provides optimal insulation for more comfortable sleep. Customized Quilting Baffles: This sleeping bag features a unique manufacturing process. It sews one layer of fabric and the filling inside first, then adds another fabric to secure it, rather than sewing all layers and filling at once. This patented technology effectively blocks cold air and provides optimal insulation for more comfortable sleep. Velvet Lining: The velvet lining provides a soft, skin-friendly touch, making every night's sleep extremely comfortable. In addition to comfort, it also offers insulation, moisture absorption, and breathability.