Kiwi aqua stop (aka Super protector) works just the same in my experience. And is just over 2 euros in my local supermarket here.http://www.kiwicare.com/kiwimcmssite/us/products/leather/super-protector.html
These are made by Sanders, does anyone know for whom since they are unbranded. I'm thinking a US retailer since the sizing info is in both UK and US format which is not seen on Sanders branded shoes. The pull tab reminds me of Mark McNairy but I think their tabs are always red, white and blue, right?