I have used this pair for almost one year now. I am a medical student.<br /><br />BUILD - Construction is rubberised material (similiar to most crocs), the bottom in lines by a soft sole, and a soft cloth top layer. The only issue I had with build was the neck of the shoe, which would encircle ankle caused some discomfort for the first 4 days, until the shoes were broken in and stretched.<br /><br />FUNCTION - I only use these shoes when I have to be on my feet for LONG HOURS. They are very comfortable for these times. My feet and legs are sore the day after having worn these for 24-48 hour &#34;call&#34;.