THIS BAG IS THE ANSWER TO YOUR DREAMS. IT HAS SHAPE SEWN INTO IT AND GOES IN SIDE THE HATCH FILLING THE WHOLE OF THE INTERIOR,WITH THIS BAG YOU DON,T HAVE TO WORRY ABOUT GETTING FISH IN, IT STANDS OPEN ON ITS OWN AND HAS A BIG IN SIDE CAVITY THEY ARE 1/4 INCH CLOSED CELL FOAM AND HAVE A 12oz UV STABLE RIP PROOF FILAMENT VINYL IN AND OUT.