Sea to Summit Spark ultralight down sleeping bag, 45 degrees, regular.

Ultralight down sleeping bag with a temperature of 45 degrees Fahrenheit (7 degrees Celsius). For warm-weather backpacking, bikepacking, and touring. High Loft 850+ Fill Power Down Insulation (Responsible Down Standard Certified) Non-PFC Ultra Dry Down treatment improves response to moisture and maintains loft and performance. The ultra-lightweight 10D shell uses PFC-free DWR to maintain high waterproofness in the hood and footbox. Breathable 10D nylon liner provides all-night comfort. Contoured mummy shape provides enough space for natural sleeping position. YKK's #5 zipper provides reliable, snag-free operation. Baffle construction is sewn in for lightweight; Sea to Summit warranty is provided for the life of this product