I've never been unhappy with orginalen Cros, which are simply always super comfortable and especially in a job where you can all day on your feet is very comfortable to wear through the soft material. The orginalen Crocs there is no discoloration or chemical smells and sweaty feet I've never seen. Like all the newer shoes Crocs series they fall though extremely small, wear actually 40-41, fit me do here 42-43 (though I wear them also like not very tight).
