JoomraWomens Mens Minimalist Barefoot Sock Shoes Zero Drop Multi-Purpose & Ultra-Portable Water Non Slip Footwear

The bottom rubber is about 1/4 inch thick. It's essentially a sock dipped in rubber similar to typical gloves found at home depot. Your feet will sweat in these. Honestly after purchasing I realize that if I want more than what a sandal can offer I'm better off wearing shoes

These feel good on my feet and appear well made. I’m very happy