adidasUnisex's Adilette Aqua Slides, 3.5 UK

Are these adult size 13uk ?

Are these adult? The description says kids, but the description of sizes leaves off child as it goes up?

Are these genuine adidas sliders?

Where are these sent from? I ordered over a week ago and they have still not been despached. I normally get Addidas orders in a couple of days?