You’re planning a 300-mile cruising escape, and along the way you don’t want to trust your tanks to watery fuel from infrequently used marinas. These rugged, portable fuel bladders, manufactured by the makers of ballistic military and NASCAR fuel tanks, strap to the deck securely and fuel easily via durable fittings. In sizes to expand fuel capacity from 100 to 1,000 gallons, they roll and stow away. From $996; atlinc.com
