Camping Sleeping Bag Baby Products, Backpacks & Carriers, Kelty, Travel Gear Kelty Women’s Sine 20 Degree Sleeping Bag Review by BlackPelican July 16, 2018 No Comments 50D Polyester Taffeta ThermaProInsulation Built in Blanket Comfort-Tuck Zipper System Oversized Hood Oversized mummy shape Tuck up your knees, sleep on your side, and roll over for a more comfortable sleep in Tru.Comfort 35