The bottom is solid and non skid. However, the tread is very aggressive & so it grips very well on slippery surfaces. My gray slipper looks great. Great sole material, it grips the floor well.

But i love these and they are very comfy. It feels luxurious with the fuzzy material used on the inside. They are very warm and have great padding.

The soles give great support and very comfortable. They are great for around the house as well as quick walks to the mailbox or car. They’ve been holding up pretty good since christmas & i wear them every morning and at night!

After a few weeks of wearing them, the inside is complety matted down and very slippery. They are now completely flat and no longer plush and cushioned. Feels like i’m just walking on the rubber sole with a piece of fabric over it.