NIKE Aeroloft Poly Filled Vest 100% Polyester Imported AEROLOFT INSULATION CONSTRUCTION ALLOWS FOR LIGHTWEIGHT WARMTH IN A POLY FILLED BAFFLE LASER PERFORATION ON FRONT PANEL ALLOWS BODY TO REGULATE TEMPERATURE WARM TO TOUCH KNIT ON BACK PANEL POCKETS FOR STORAGE.SHELL: 1.5 OZ 100% POLYESTER RIPSTOP; FILL: 2.5 OZ. 100% POLYESTER