The Texsport Wilderness Hammock is 100 percent nylon and the bed is 100 percent cotton. The hammock is ideal for hunters and campers whose travel take them to mosquito country. They are fully-enclosed with no-see-um cotton mesh and a shelter built around hammock, which protects you from pests. there is a rugged cotton canvas sleep area. There is a top portion constructed of fire retardent nylon and steel rings at both ends. There is a sturdy zipper closure and strong reinforcements at all strees points. There is a nylon carrying storage sack.