Bluespring, 33" x 80", Tall Size Sleeping Bag, 4 LB Hollow Core Insulation, Fits Most Up To 6', 100% Cotton Cover With Soft Cotton Flannel Liner, For Mild Conditions With Temperature Of 30 Degrees, 100% Washable, Tie Cords For Easy Roll Up, Fiberlock Keeps Insulation From Shifting, Thermolock Prevents Chilly Air From Coming In & Prevents Warm Air From Escaping Out Through The Zipper, YKK Zippers Give Premium Performance, Zipper Glide Adds A Tailored Appearance While Allowing The Zipper To Operate Smoothly Around The Corner.