The Helly Hansen Potsdam Insulator Jacket is the insulator of choice when flexibility is required on the jobsite. Insulator can zip into the Potsdam Jacket for added warmth on those colder days. Helly Tech Protection. Brushed Polyester inside collar. Reflective bands at waist, shoulders and cuffs. Inner pocket with Velcro shoulders. Mobile Pocket with Velcro closure. Two front pockets with zippers and snaps. Drawcord adjustment at hem. Tail drop. Storm flap w/ zippers and Velcro closure. Click-on loops for accessories under pocket flaps.