Minimal flexible shoe w/zero heel lift; very comfy & designed to be worn w/o socks (but can wear 'em). Sole is a flexible 8mm thick. Used coupon code: mil15off, good thru 12-31-12 for $15 off. Leming was formerly Stem Footwear. Wide toebox. Just wondering how long the sole will last...first run of 4.5 mi., went very well - no socks, very comfy, no hotspots...seems kinda like a stable water shoe, but I'm impressed...like 'em more than my Saucony Hattoris. Good for work, too - 'cause they're black.