The Gucci stores do have it on sale but don't have many left? I see it on saks.com but not in the sale section. When you look at Gucci shoes.. The black is not on sale but if you select, mystic white, it is on sale for $254.90
If you click on the link, it will take you to the flip flops on the sak's site. The black is not on sale but if you click on the drop down, the MYSTIC WHITE is on sale. For some reason, it's not showing up in the SALE section.. BUT.. If you go to Gucci shoes, Cruise shoes, they are there. Click on it and you'll see they have the black for regular price and the white for sale price. The Gucci store did / does have the white on sale. When I was at the Gucci 5th Ave Store in NYC they had it but only in some really tiny size like a 4 or 5.
I think if I remember correctly, the one with the heel is leather with a rubber bottom almost covering the bottom of the front part of the shoe.. It's like as if it was all leather and someone put a rubber sole thingy on it.