Features:

The Freehawk® envelope sleeping bag is great for 3-4 season camping.
It adopts double filled technology and protects body in the preferable way.
Two pieces can be zipped together to make a double one. A wide bottom,
S-shaped quilting design is excellent.
Relying on this particular technology, the filling cotton will be fixed and the
sleeping bag will be more durable.
100% polyester lining is skin-friendly, soft and warm.
Zipper weather-stripping design, drawstring structure, inner pocket, zipper
baffle, wind baffle, collar and brim keeps the body warm wholly.
Specifications:

Outer Fabric: 190T Polyester w /p cire
Filling: Comfort Loft 250g/m2
Lining: 100% Polyester
Carry bag: Oxford Compression
Female Comfort: 50 ℉
Male Comfort: 41 ℉
Extreme (Not lower than this): 23 ℉
Comfort Extreme (Not higher than this): 68 ℉