I just recieved my Jingas minimal shoes. The sole of these shoes are thinner than VFFs. Jingas combine an ultra-light upper with a slim line sole for maximum flexibility and lightness. Jingas slim sole offers all the feelings of going barefoot but with great styling and fun! These feel like they engage more foot and leg muscles than standard shoes. These shoes are made in Brazil. I paid US $60 for these shoes from a shoe company website in the UK http://www.lovethoseshoes.com as I can't find any US distributors. These are good quality shoes and they are very light and flexible. The sole is flat. These shoes offer no support at all which I like. They are washable. I wore these shoes all day, and they have a "barefoot" feel to them. The sole is thin enough that I can feel the ground with them. They’re not so good for wearing in the rain as they’re not waterproof so please be nice to them and wear your welly boots on rainy days! I did not try running in these because I can't run in shoes, but they do feel like they would make a good minimalist shoe for running. I will be using these shoes for going to work because they have no support and will keep my foot muscles strong. Click the link for sizing chart. http://www.lovethoseshoes.com/cart/SizeChart/size_JINGA.htm Excerpt from Jingas The slimline sole of Jingas means that your feet are encouraged to move ‘naturally’. Too much cushioning means we lose touch with the real impact our feet make on the ground, and walk as if we have weights on the end of our legs. Wearing Jingas makes sure you literally have your feet on the ground, you can feel the different parts of the foot engage with the ground and start to use the muscles in your feet as nature intended, giving a Brazilian spring to your step!