Flask Flip Flop

This is a flip flop made by Reef that is not only a device made for walking but also drinking as well. Inside the sole of the flip flop there is flask that can hold anyone of your favorite beverages. I love this design. Instead of having to carry/ hide a flask in your pockets or belt when going to a concert or outdoor event you can conveniently hide it in something that you are already wearing that happen to be comfortable as well. The shoe even comes with a little funnel to help get the liquid inside. On the bottom of the shoe there is a gauge to see how much of the liquid is left. I can see some down falls of having to drink from your shoe, such as having to drink from your shoe. There could be a bit of a sanitation issue there if you didn't have something to pour the fluid into, especially if you stepped in mud. I could also see getting sand in your drink if you happen to be at the beach. At a price of 40 dollars I would have to consider buying this product. On one had it seems like a really handy device for certain times but on the other is it worth the hassle?