"The Premium Incubator is our full length under quilt.  Made with 10 denier ripstop nylon fabric that features a DWR (durable water resistant) coating to help shed moisture, and an internal calendared finish for down proof construction. 
 
Each quilt is generously filled with RDS Certified, 850 fill power, DWR treated goose down or 950 fill power, untreated goose down to provide you with stabilized insulation underneath your hammock.  Featuring a unique, contoured design, the Premium Incubator will keep you comfortably warm down to its temperature rating.  Proudly made in the USA."
 
The above wording is lifted from the Hammock Gear website where extra information and videos can be found.
 
Comes with a cotton Storage Bag and Stuff Sack.
 
Details
Outer Shell Color: Dark Olive Green (10D), Inner Shell Color: Black Taffeta (10D), Temperature Rating: 40°F (5°C)
 
Outer Shell Color: Dark Olive Green (10D), Inner Shell Color: Glacier Gray (10D), Temperature Rating: 30°F (-1°C)
 
Details for above
Length: Standard (5'7" to 6'2") (170 cm to 187 cm), Fill Power: 850, Overfill: Standard Fill)