So I looked around and found a second hand box, and came across these roofbars. Black, are very well put together. COMFORT -I am possibly spoilt by headphone comfort, owning some particularly high end products worth considerably more than these so please take my view as purely subjective. A very fragile product, which needs sensitive treatment. From the first time I put them on, felt great and can work in them all day and dont give a thought to my feet hurting in any way. Seriously, this is so bright (with no way to turn it off). I hadnt had crocs before so their is a learning curve with them. Unfortunately, I bought a lot of products in the past that hasnt really done the job but this one is so impressive that I want to buy another one. I added some jst plugs to the battery so I can run a 800mah lipo battery, run times are now incredible, and I can use a standard rc battery charger, and skip the long wait using the USB charger thats included. Something about the different zones of cushiness in the footbed acts like custom orthotics, and I can walk a far sight longer in these than in any other shoe without orthotics.