dabunk,
i checked out that site,, might have to give them a spin.
http://www.rainbowsandals.com/guarantee.aspx

right now we have been hooked on OLUKIA flip flops.
never had to try their warranty but they are the most comfy ones i have found.
http://www.olukai.com/ProductPurchase.aspx

edit: i hate crocs!

better re-read the fine print on rainbow, guys....

it does NOT say guaranteed for life if they wear out - not at all. they are guaranteed free of MFR DEFECTS - like if the strap pulls off or the stitching breaks.

wear & tear, cracks, water damage, gouges & use is on you.