I bought these Crocs a year ago and these are great!!  The Malindi's are not clunky like the clog sytle Crocs and they still offer plenty of comfort and can be washed off when dirty.  I walked 10+ miles a day throughout Europe in these and didn't have any problems with my feet at all.  These are great for travel since they are light weight and smoosh down while packed.  The slingback style and vents near the toes allows for more ventillation which eliminates the sweaty feet concerns.  I wear a 6 1/2 in normal shoes and recommend buying a 6 in Crocs as they do stretch and mold to your feet over time.