You can give those expensive, brand name sneakers, a newer look with a hair dryer.
For clouded bubbles on the side of the shoe, simply aim the hair dryer at the air bubble, and the bubble window will clear right up, according to You Tube's Sneaker Style.
On the rubber soles of the shoe, where wrinkles begin to appear from wear, do the same thing: Use a hair dryer in brief spurts to smooth out wrinkles. Be careful not to use the hair dryer too long. It can melt glued parts. So switch back and forth along the sneaker, using the dryer to iron out the wrinkles. Never aim the dryer at one spot for more than a minute.