Sorry I'm not sure about the WL, but I do know that the Contemporary Resort shop (over in the far corner on the concourse) does sell it as I had to buy some during our last trip! I had a small rubbed spot on each foot due to wearing some new sandals.

The only problem I had with it was that I didn't have any small scissors with me to cut it, and had to use my husbands little nail clippers in his travel bag to try and cut a small section to fit, but I finally got it worked out and my feet sure thanked me the rest of our stay!