The first pair of slippers that I had bought from Bedroom Athletes, are the ones that I'm still wearing. Because there have been so many Special offers on their slippers and I have been very happy with the first pair I bought; ( some two to three years ago) I kept on buying these slippers. Now some eight new pairs later, I've decided to start wearing these new slippers but none of which i can put on ; because they are either to small or the zipper only goes half way down . Since buying all these pairs of slippers, i have given one pair away to someone with smaller feet, the other pair I cut further down the front to see if I can get them on but they're still to small. All the other pairs are in a bin bag underneath my bed, ready for their next adventure. So even though I was very happy with my first pair, I have still yet to find another pair that are not too small. I've always bought the largest pair on offer. My faithful pair are a size 11-12 uk. Maybe there is someone in the office that can help me. Yours sincerely Paul Arnold.