I used Sunbrella outside, Batting in the middle and Lite weight Canvas inside. It sure helps to keep the A/C inside.....

Companionway cover.

We sure needed this. I started at 2pm and finished at 6:30pm. Took it to the boat (the Sewing Machine, too) and did the final fit, cut the areas for the jacklines and installed the Common Sense Twistlock Fasteners. Total job took about 7 hours. Cost was under 50$... of course, its made of Sunbrella.....

MainSail Cover