Alpha Industries Men's Brewer Helmet Bag 57% Nylon/43% Polyester Imported Dry Clean Only The brewer helmet bag is a traditional military helmet bag that is made of oxford nylon for a sturdy shell The interior compartment features a softer quilted nylon and interior pockets Top zip closure and removable shoulder strap; can be carried briefcase style or worn with removable shoulder strap Two exterior Velcro and snap closure pockets for extra storage The bag comes with two genuine alpha industries patches that are removable. Can add one's own patches to the outside Velcro panels