Xero Shoes, which makes barefoot running sandals, was originally called Invisible Shoes.
Top Reviewed Xero Shoes Products

Mesa Trail II
Trail Running Shoe
$120

Scrambler Low
Trail Running Shoe / Trail Shoe
$150

DIY 4mm Kit
Sport Sandal / Barefoot / Minimal

Z-Trek
Sport Sandal

Invisible Shoes 6mm Contact
Sport Sandal / Barefoot / Minimal

Z-Trail
Sport Sandal
discontinued
In order to show you the most useful information, we have omitted some unreviewed products.