ControlKNIT spiral-wound engineered knit technology with durable, easy-to-clean coating TruFIT System provides easy-on flexibility and secure, locked-in heel fit Responsive StratoFOAM tuned for golf comfort and performance PowerPlate mazimizes energy transfer by harnessing rotational forces FootJoy warrants that this golf shoe will be waterproof in normal use for two years (U.S. Warranty)