need help finding thinsulate slippers

[MomBook]

Hi,
As you can tell I am rather new to this. I hope this is the right place to post my request. I bought a pair of thinsulate slippers about 2 years ago. They are a soft boot like slipper that goes above the ankle. Mine are pink but the color doesn't matter. I have MS and my feet are always freezing. Even with socks and slippers I can't get them warm. These slippers are the best I have found for me. They are easy for me to walk in as my balance is not good. I think I got then in one of those silly little catalogues they send around. Mine are almost worn out and I can't find another pair. Does anyone have any idea where I can look for them ?? I would appreciate it so much if you would let me know. Thanks :-)