The adidas 4D midsole is printed with light and oxygen, using Digital Light Synthesis™, a technology pioneered by 3D printing specialists Carbon, an adidas partner since 2017.

Look for the tag on the product which will have the size and other product information mainly inside the shoe that is behind the tongue of the shoe. Real Adidas shoes have tags with serial numbers for the left and right shoe. However, a fake product will have the same serial number on both shoes.

Overall. The adidas 4D Run 1.0 is a little too heavy and the cushion too stiff to use as your daily running shoe. But it's a very comfortable and supportive shoe. You can use it for light running, lifting weights, and cross training.