Redlite - They're not real hard to find - pretty much everybody would have them, you'd probably find 'em at a shop near you if ya ask.
In terms of which are best, what MikeP said - Rosco-Sampo HD -
"There is no royal road to this heavy surf-fishing. With all the appliances for comfort experience can suggest, there is a certain amount of hard work to be done and exposure to be bourne as a part of the price of success." From "Striped Bass," Scribner's Magazine, 1881.