... Packcloth or 1000 d. Cordura. Heavy-duty, envelope-style Velcro closure. simple and useful envelope bag POU-031SIZE: 13.5" x 11.5 ... . Cordura• Heavy-duty, envelope-style Velcro closureColor: Black, Peacock, Grey, Green, Royal, Navy, Purple, Red, Teal, Burgundy, Olive, Orange, Silver, Pink, Yellow, Gold ... ODM are acceptable. view of our factory simple and useful envelope bag with velcro closure POU-031