Rock America Rock Band Hoodies are highest quality, licensed band Hoodies. Our rock band hoodies are made from a machine washable cotton/poly blend. With front pockets, a comfortable hood and designs that rule, our rock hoodies will keep you both fashionable and warm. Official Vestibule Zip Nirvana hoodie. This Nirvana hoodie looks great and is soft to the touch, and yet made of durable fabric to last many years.