I had the smooth original Howser in orange and loved them - a great spring/fall slipper.  They got some sort of mildew stains that would not wash out even with bleach, so I just got a new pair - the charcoal, wooly looking kind.  These new ones are super wide, as if they sent me a man's shoe instead (though it is labeled as a women's size).  They have the same sort of comfort but the wooly looking type seems warmer than my original pair.  Think I'll try the nylon looking kind again to see if I can get back to the pair I loved.