I've used the Finis swim snorkel for years. Having the replacement headband available saved me the cost of a new system. Also, the new strap seems more comfortable and easier to adjust.

I HAVE HAD THEIR SNORKEL FOR MORE THAN 12 YEARS - THIS IS THE 3RD HEAD BRACKET REPLACEMENT I HAVE PURCHASED.  THE LAST 2 HEAD BRACKET DO NOT SEEM TO LAST.   SEEM THAT COULD PRODUCE A BETTER FOAM LINER.