Filson's Ultra-Light Jacket is perfect as an outer layer or underneath a heavy jacket for warmth in extreme cold. Ultralight PrimaLoft Gold 60g insulation has an exceptional warmth to weight ratio, and retains 98% of its insulating properties when wet. The abrasion-resistant Cordura ripstop nylon shell has an elasticized waist and cuffs to keep a low profile for easy layering. Soft, comfortable Moleskin-lined handwarmer pockets and collar facing. FeaturesCordura ripstop nylon60g PrimaLoft Gold insulationMoleskin collar facingInterior security pocket with zipperElasticated cuffs and waist for comfort and warmthHandwarmer pockets