
Are you planning a 5km or 10km run this spring and want to know which shoes are the best? I have a similar question, although there are a few Nike and Sketchers. Then the answer is given in Ultraboost 21, which is the latest in Adidas’ highly respected professional runner series.

Ultraboost 21 is designed for serious runners, and Adidas has made a major upgrade to make it a pair of strict performance shoes. Compared with last year’s Ultraboost 20, the main highlight of Boost technology is Boost technology-midsole eTPU foam, which can absorb your steps and then restore your body shape.
Please note that this does take some time to adapt. The feeling of running in these shoes is a bit different: it’s like a slight bounce when you touch the ground, but after some steps, you will find that it will push you to walk a little more.

Not only that: Ultraboost 21 is also environmentally friendly; its Primeknit+ upper is a high-performance recycled material, partly made of Parley Ocean plastic. Adidas said that 50% of the shoe uppers are textiles, and 75% of the textiles are Primeblue yarns. The Primeknit+ upper allows the shoe to breathe; it has many small holes for air to pass through, which means less sweat and more comfort. The Stretchweb outsole with Continental rubber gives the shoe durability and firm grip.

The heel is where the bulk lies, and for good reason: if you prefer the heel to the ground, this is where you gain stability. In addition to energy return, if you change your landing method on a different track, the versatility of this shoe is enough to maintain momentum. In addition, it can also reduce the chance of injury, especially for those who are recovering.