SkechersMen's Garver-Louden 64487 Open Toe Sandal W/Strap Closure

I wear a 9.5 And have wider foot, what size would I get, 9 or 10?

Is the upper sole cloth material?

Hi, the botton is made on rubber or kind of plastic? I mention that because I got another brand that I was slipering all the time , thnaks

Is this product waterproof or water resistant?