Exactly what I needed
These were not the shoes I thought I was looking for, but they checked all the boxes for me so I tried them out. Waterproof, slip on, socks optional, easy clean, won't scuff when kicking a ball for the dog, non-slip. I usually wear a size 7.5 or 8 in most brands, but I remembered sizing up when ordering Jambu in the past, so I tried the 8.5. They were close to perfect, but I was hoping for less heel slip so about a month later I decided to order the 8 to compare. They were also almost perfect. I waffled for about a week before I figured out the solution. I wear 8.5 on the right foot and 8 on the left - now they're perfect!