Harkila Camo HSP Insulated WaistcoatHarkila Camo HSP Insulated Waistcoat The Harkila Camo HSP Insulated Vest is a light and ultra warm essential for hunting. It has a windproof outer shell with AXIS MSPMountain Camo. The innovative insulation, PrimaLoft Aerogel, developed by NASA, is seamlessly integrated and provides superior warmth without applying, and can be easily stored in its own pocket. The low collar, the elastic arm cutouts and the tight fitting hem are suitable for covering.