Fizik X5 Artica winter Cycling Biking Shoes size 46 EUR 11.5 US 10.5 UK

I bought these new, tried them on a couple of times with different socks, walked around the house, and decided they weren't the fit for me.  Length was okay, but I need a wider winter shoe for my huge wide Flintstone feet.  For reference, I normally wear a men's 11 in regular shoes.
Never installed cleats, never left the house, and never took them out on the bike.