Nike AeroLayer Men's Golf Top LAYER ON WARMTH. The Nike AeroLayer Top is a perfect layer for crisp and dewy days. It pairs lightweight insulation with a water-repellent shell to help keep the elements at bay. A 1/2-zip closure and high collar offer coverage you can customize. Nike AeroLayer technology layers lightweight insulation with breathable water resistance. 1/2-length zipper lets you adjust your coverage. High collar offers extra warmth when you need it. Raglan sleeves eliminate shoulder seams for a smooth, natural feel throughout your swing. Drop-tail hem helps keep your back covered at ball address. Durable, water-repellent finish throughout helps keep you dry in wet conditions. Double-knit fabric has a heathered look. The zipper design has been updated to help the collar maintain its structure and to make adjusting the zipper easier. 100% POLYESTER