The Native Survival Wool Blanket (NSB) Designed by Mitch Mitchell, Comprised of Wool, Military Velcro, Military Thread. Specs: 90% Wool, Approx. 6'8"x5'2", Velcro Edges Allowing NSB to be a Sleeping Bag, and a Fire Resistant Bivy Protecting Your Sleeping Bag From Embers when sleeping near a fire. Its a Blanket, a Sleeping Bag and Bivy. Strap Not Included In Picture.