SHOE UMBRELLAS

I think that the hot spell might just be over as there has been quite a lot of rain lately.  Whenever it rains, the shoes that I am wearing will get wet and this is not good for my health.  I might get sick wearing wet shoes.  Well, I think I will just have to get me a Shuella (Shoe + Umbrella) to protect my shoes and keep my feet dry
Judging by the pictures provides, Shuellas are handy and stylish umbrellas for your shoes. They are said to be completely waterproof and feature durable non-slip soles and reinforced heels. It also comes with carry pouch and towel.  LINK
Besides buying them online, I wonder if they are available in shops or departmental stores.  Anyone seen them on sale anywhere?