For Those who reside in colder climates, This Mummy Bag is for YOU. Take a look at the specs
Features

The Alps Sleeping Bag has an integrated draft tube and collar to mitigate heat loss and keep you toasty warm. The hood can either be contoured to keep warmth in or laid flat to let heat escape.


Insulation: Slumberloft synthetic insulation
Shell fabric: Polyester taffeta
Liner fabric: Polyester taffeta
Carry weight: 6 pounds 4 ounces
Packed size: 12 inches wide x 17 inches long
Fits to: 6 feet
Shoulder girth: 64 inches
-20-degrees F / -29-degrees C
Two-layer, off-set construction and differential cut prevents cold spots
Flip over hood allows user to flip the hood inside out for the option of a flat or contoured hood
Draft collar prevents heat loss from neck and shoulder area
Anti-snag zipper protection
Draft tube along zipper keeps out cold air and prevents head loss
Trapezoidal footbox provides space so feet remain in a natural position for increased comfort ..product may vary from image