Adidas' Ultra Boost and Pure Boost are two very popular sneakers, and the number one difference between them is their midsole technology and design. Ultra Boost uses Adidas' unique technology called Boost midsole technology.

So whether you're running outdoors or on the treadmill, our Pureboost running shoes offer just the right combination of fit and flexibility you need for a smooth run every time.

A: People report that about 15 minutes after trying Pureboost they feel alert, focused, energized, and refreshed for hours. . . but without the jitters and crash that you might get from ephedra, high levels of caffeine, or sugar.

Energy-returning running shoes made in part with recycled materials. The more energy you put in, the more you get back. Built for everyday running, the adidas Pureboost 23 shoes feature full-length BOOST for energy return and strategic cutouts along the rubber outsole that let the foam compress and expand as you move.