I now own five pairs of Sidekicks; silver, pink, python, zebra, and now gold. I don't normally wear these outside, though I do take a pair in my purse if I happen to be wearing heels. More likely than not, the heels will eventually get deep sixed in favor of the Sidekicks.
These are made of a synthetic leather and have thin rubberized soles at the foot's pressure points (heel and footpads). While not particularly structured or supportive, they feel like heaven when my feet are sore and work well when I'm around the house and are a better and safer alternative to open heel slippers or going barefoot.
I wear these most of the time when I'm home and quite often when I need relief from heels. They seem to be wearing rather well though admittedly they don't get any rough treatment.
The only problem with these are the sizing. I normally wear a size 9 and I ordered these in XL because they run small. I suggest you size up on these and if you wear larger than size 10, don't buy these.
These come in a nice carrying pouch and the shoes fold nicely and compactly into the pouch.