Cool Catcher - made from 1.8 oz ripstop nylon (very strong and long lasting). Catches the wind from whichever direction you point it and funnels the cool breeze down into the boat's cabin. You can use it in a forward hatch or the main companionway. Bill Tosh has one on his Montgomery 17 (pictured) and says he could not do without it during the summer. It's wonderful to have this option!