Birdsall Marine Designs canvas department can fabricate any type of cover for your boat, motorcycle or even a swamp buggy. Material of choice is Sunbrella Canvas and sewn with gortex thread known as the best quality in the industry. All of our snaps are stainless steel hardware through out all our construction. When were are fastening two different metals together we use tef-gel to help reduce corrosion. Also we use plastic washers to seperate stainless between aluminum that help reduce galvanic corrosion. these are jsut a few practical measure we take to develope a top quality product. We work alongside with our customers to design a custom taylored product that exceeds our customers needs.