Review on Vans Authentic Black Rubber Men's Shoes - Unisex Design by Cesar Hubbard

Love them and have only had them less than a few months. I wear them 2/3 days a week with socks and short toenails. Three days ago I noticed a hole next to my sock and it got bigger the same day so I stopped using them. Both shoes have a scratched inner layer (something like a rubber layer). Given my moderate usage, I have questions: 1. Shouldn't they last a little longer? 2. Did I receive a defective pair? I mean less than 2 months.