Eureka Women's Casper Performance Mummy Sleeping Bag Shell: 100% Polyester Lining: 100% Polyester Filling: 100% Polyester Imported Performance 15 degree mummy bag with Eureka Rteq insulation Shell material is 66D/230T Stargaze Polyester Ripstop Lining material is a 75D peached polyester YKK #5 zippers and vertical "S" quilting Trapezoidal footbox and full length draft tube Women-specific design; mummy bag with Eureka Rteq insulation The woman's mummy style bag is 78x31x20 Lining material is a 75D peached polyester Vertical "S" quilting keeps insulation in place Trapezoidal footbox and full length draft tube