What happens in the Carlos by Carlos Santana Vegas flat stays in the Carlos by Carlos Santana Vegas flat. A little dressy, a little casual, this women's slip-on shoe has a suede upper, laser-cut circles, a closed back and d'Orsay-style open sides. A cushioned footbed delivers walking and standing support to this women's slip-on flat shoe, which is finished with a flower-print rubber sole for flex and grip.