NIKE Men's Aeroloft Poly Filled Jacket 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 SLEEVES AND BACK PANEL; POCKETS FOR STORAGE; SHELL: 1.5 OZ 100% POLYESTER RIPSTOP. SLEEVES: 7.4 OZ. 100% POLYESTER THERMA-FIT DOUBLE PIQUE; FILL: 2.5 OZ. 100% POLYESTER SYNTHETIC FILL FIBER