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Nike Air Pegasus 83 Donna
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Adidas and long-term partner, soccer star David Beckham, have revealed their newest creation: The UltraBoost 2019.

The special sneaker is dedicated to Beckham's 20th anniversary with Manchester United for the Triple Crown, coming at the same time as Adidas's 70th-anniversary celebration. The Adidas ZX 750 Femme White Primeknit shoe features a DB99 print along with the midsole and label, representing the 1999 Triple Nike Air Max 2016 Femme Crown success.

Beckham previously released an Instagram post accidentally sharing an image of the sneaker before it was meant to be shown. He acknowledged it by posting another image of the trainers and writing, "So sorry. Apparently wasn't meant to post these yet. My bad." He's since deleted both posts but was seen modeling the sneakers in China.

adidas has just teased the release of its upcoming running shoe with long-time partner David Beckham. This pair of UltraBOOST 2019 celebrates the Englishman’s lustrous career as a footballer, mainly by paying homage to his time at Manchester United.

The collaboration commemorates the Red Devils’ most successful season (1998 – 1999) in which they won the treble trophies — Premiere Nike Internationalist Femme League, FA Cup, and the UEFA Champions League. The running shoe features a white Primeknit upper, a Nike Air Presto Donna white lace cage with reflective “Three Stripes” branding, and “DB99” printed in black on the BOOST midsole. The trainer is finished off with a fluorescent-red 3D heel frame, Continental rubber outsole, and a Torsion bar.

Convention dictates that if a shoe is comfortable, it must be good. But when you’re ready to get serious about running, you’ll need a lot more than just ‘comfort’. Adidas’ UltraBoost 19 is the latest in a long line of premium running shoes designed to give you not just comfort but support (in all the right places) and a significant amount of energy return. Some might call it an unfair advantage but the fact is, UltraBoost technology feels so much better than standard rubber that it’s like the di ..

Next is Nike Air Presto Damen the Torsion bar – think of it like a spring that compresses when you put your foot down and expands when Nike Roshe Run Damen you lift, giving you increased forward momentum. You can see the Torsion bar through a tiny window underneath the shoe. The Boost capsules and Torsion bar make up the energy return system.

The third component of UltraBoost is the breathable Primeknit 360 upper – a sock-like woven upper that stretches and contours to fit different foot shapes. There’s a reason why woven uppers ..

Ever since the dawn of running shoes, the sliver of something between the foot and the earth has been a big focus for athletes trying to get an edge on the competition. The idea of returning energy using a springy midsole has been at the core of product development since the mid 80s. For years the work focused around foam rubber compounds like Nike Air Zoom Pegasus 35 Mujer EVA (ethylene vinyl acetate) and PU (polyurethane). These materials offered cushioning and support, could be moulded and shaped, but they just weren’t quite right. Despite experiments with chemical compounds and advances in pressure moulding – which gave us Phylon from EVA – the foams were still subject to the effects of temperature and high compression set – the eventual loss of springiness – and so the full effects of energy return stayed out of reach.

A few years ago, in order to get a leg up on the competition, adidas sought the assistance of one of the world’s largest chemical companies, BASF. With their combined expertise, the pair were able to create a new form of TPU (thermoplastic polyurethane) that had a unique block-copolymer structure providing just the right amount of bounce. The difficulty hadn’t simply been in Nike Air Pegasus 83 Donna finding springier substances – rubber that springs back too quickly has a jarring effect – it’s all about fine-tuning the reaction. This is where the strange bubbly BOOST profile comes into play. Every BOOST sole is made by squishing together lots of small capsules, allowing each little pellet to retain its own shape and giving the finished sole a precise reaction – something that’s much harder to achieve with a big, single-density slab.
 
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