NIKE Men's Slippers Court Majestic Leather Foot Wear-White/Blue/Green, Size 9

Is this shoe heavy ? I have Reebok weightlifting shoe and its so heavy and uncomfortable to walk ard in the gym ...

Are these the 3 or the 3 XD?

I bought a size 9.5. but I received a package that not include an extra insole. Could you send it to me?