It is a lifetstyle tooling which leaves classic impression of the wearer. It raised wall protects the feet while walking & its anti-skid resistance provides a better grip to the ground & helps you to walk firmly.
Size and product dimensions are perfect, but it's slightly tight. I hope regular use would ease up the tension. I'd suggest that you go for a size larger if you have wide feet. Edit : I have been wearing the shoes regularly for a week now and they have adjusted accordingly.