I am on my feet all day in a lab and I thought I would try Timberland brand clogs after some coworkers liked them.  Well the insoles are very hard and the arch support is not very high (I have high arches).  I LOVE Klog brand shoes they are a 100x more comfortable.  I've worn these twice and both days my feet ached at the end of the day which they never do in my Klogs.