Features of the Simms Women’s West Fork Jacket Pertex Quantum Pro with PrimaLoft Cross Core Gold Insulation Toray stitchless material with PrimaLoft Cross Core Gold blowable Insulation 3 Point adjustable storm hood Shingled cuff to keep elements out Zippered chest and hand warmer pockets Adjustable hem Fabric Details Shell, Upper: Pertex Quantum Pro 30D 100% Nylon with DWR Shell, Lower: Toray 100% Polyester Pre-quilted 30D Down Tube with DWR Lining: 100% Polyester Taffeta Insulation Upper: PrimaLoft Gold Insulation with Cross Core Technology Insulation Lower: PrimaLoft Silver Thermoplume with Cross Core Technology Insulation Sleeve: PrimaLoft Gold Insulation with Cross Core Technology.