Military Style Acrylic Commando Crew Neck Sweater - Made From Acrylic Material. Reinforced Shoulder and Elbow Patches. The 100% acrylic material allows this sweater to be warm and function-able all at the same time. Reinforced type of material on the elbows and shoulders brings a little design to a nice and function-able sweater already. This commando sweater can be perfect for anyone going out for the night on a chilly evening.