The tops made at Bear Creek Canvas are manufactured out of 10.38-once canvas which meets or exceeds industry standards. Whenever possible we use materials made in the U.S.A. Our windows are made of tinted 12-mil. vinyl to help keep out excess sunlight and heat. The screen on the windows is a tight 18x16-mesh assisting you in keeping out unwanted insects. A durable 13-once vinyl material over the bed wing that assists you in making sure your camping trip is dry and enjoyable. We offer three color choices of canvas which are tan (standard), green and gray.