Hi Paul, If your hulls are white, then you probably want the white non-skid tape that West Marine, Boat U.S., ACE Hardware, etc. sell. It comes in one and two inch widths. It goes on easy and stays on a clean hull well. I recommend rubbing on some acetone on the hull where you want the tape before putting on the tape just to be sure you get a good bond. Also, round off the corners so that they are less likely to come up. Finally, I recommend that you put one edge just above the side of the hull so that it wraps just onto the deck. That gives little resistance to shorts or harness but a good grip when getting on or staying on the trapeeze - and that is why 2 inch width tape is better! It is about a buck a foot unless you buy the big roll at Boat U.S. at wholesale; then the price is about 70 cents a foot but the amount paid is higher. SO find some others who need it and share the tape and the savings!
Mike Fahle Toledo (big tape user with all these new boats!)