This is my second pair of Clarks shoes, and I wore the first pair almost every day until they literally fell apart (about 12 years).  This shoe is incredibly comfortable and almost like wearing slippers.  Only once before have I bought shoes online, because in many shoes my feet seem to fall between sizes, and I generally wouldn't buy a shoe without trying it on.  Based on experience, though, I took a chance on the Ruthie Grace clog, and it's a perfect fit, size 8.5 and completely true to size. $80 is a lot to pay for shoes on my budget; but I know this is a quality product and I feel sure they will be my favorite shoes for quite a few years.