Help with authenticity and sizing men's Prada sandals

[njmckay27]

Hi all. I purchased these men's Prada sandals at a thrift store. There is no information on sizing, or anything else. The only thing on the sandals I can find is the Prada label on the sole, and a number 4 with a circle around it on the bottom. They appear to be very good quality, so I don't think they're fake, but I'm not sure since there is no info on them anywhere. See attached pictures. Any help/info is appreciated. Thank you.

 

[modifiedracer93]

These are not authentic

[njmckay27]

Can you tell me why you think that? Thank you for responding. 

[a*river*runs*through*it]

I agree. Not authentic. Sloppy stitching, wrong size labeling, misaligned sole plate, etc...