In the first chapter of an exclusive two-part series, Highsnobiety and adidas explore the story of the Ultra
Boost and how this sneaker, and its technology, caused a revolution in running and lifestyle footwear.
When adidas unveiled the Ultra Boost in 2015, they claimed it was “The Greatest Running Shoe Ever”. Even with
adidas’ impressive history of producing world-class athletic footwear, this was a lofty statement to make. But the
brand knew that the sneaker they had created far exceeded running kicks’ standards. What they didn’t know was that its
impact would reach far beyond that, spilling over into the fashion world and transforming sneaker culture.
IT ALL STARTED WITH BOOST
Boost technology is often heralded as one of the most game-changing innovations to ever hit the sneaker
market. It was designed not for sneakerheads, but was first and foremost as a footwear technology for athletes — both professional and amateur. It offered unprecedented levels of comfort and promised 20% more energy return than standard EVA
rubber, setting an entirely new benchmark for how a pinnacle performance sneaker could feel and perform. Comprised
of hundreds of welded together white “energy capsules”, it was instantly recognizable, which only added to its street cred.
Debuting on the Energy Boost in 2013, the revolutionary cushioning material was lauded by runners for its superior
performance and made headlines when Dennis Kimetto crossed the finish line at 2014’s Berlin marathon in world-record
time wearing a pair of adiZero Adios BOOST. Its reach, however, didn’t extend much beyond running
Meanwhile, adidas’ designers continued to experiment with the possibilities of this new tech, spurred on by
the desire to outdo themselves. “We knew we had to create an upper that could enhance the underfoot feeling
to create a holistic, exciting comfort experience,” explains Matthias Amm, adidas Running’s product director. “Our
Futures team started to work on enhancing this concept with more Boost, a better transition, and an amazing, superior
fit on the upper.”
In 2015, the Ultra Boost was born. Its design was the perfect synthesis of innovation and style—it looked
damn good, it felt as great as it looked, and, for anyone that actually ran in it, it performed better than
any running shoe on the market at the time. The Ultra Boost was assuredly ahead of the curve, causing a revolution in
running that, unlike with its predecessors, managed to infiltrate the fashion world too.
A TECHNOLOGICAL TIPPING POINT
The Ultra Boost brought together three of adidas’ pinnacle technologies— Primeknit, Boost, and Torsion.
Although they’d all previously appeared on other models, this was the first time adidas had integrated its most advanced
upper technology with a cutting-edge Boost midsole, supportive Torsion bar, and hardwearing Continental rubber
Every element of the sneaker oozed innovation, but its design was still extremely wearable. Unlike standard
performance kicks, its slightly chunkier sole, snug knitted upper, and TPU heel frame and lacing cage set it apart from
anything that was on the market at the time; it single-handedly set a new benchmark for how a running shoe could
perform, feel, and look.
BUILT TO PERFORM
The Ultra Boost was the result of some serious out-of-the-box thinking, many years of research, and countless
rounds of testing on the track and in the lab. “The design process was like training a world-class athlete. Talent is
nothing without hard work, practice, failure, and learning,” says Amm. “We saw amazing potential in the Boost compound
and the new upper concepts, but we had to learn how to use them to maximize their potential.”
“We failed with some prototypes, but with each failure, we learned something new, and it helped us to
create the very best version of the adidas Ultra Boost.”
design director adidas running.
In addition to design challenges, adidas’ team faced production restrictions as there was only one factory able
to produce Boost at the beginning and some ambitious internal plans to use the cushioning tech across several
performance categories. adidas was therefore forced to allocate quantities and stagger production, which
unintentionally worked in the brand’s favor, inadvertently stoking hype as sneakerheads became desperate to get their hands on
a pair – each drop easily sold out fast.
“We configured, tested, reconfigured, and retested it to build the greatest running shoe ever.”
design director adidas running.
BIGGER THAN BOOST
Although clearly a technical running sneaker, the Ultra Boost had more lifestyle appeal thanks to its slick
silhouette, toned down colorway (unlike the neons and brights typical of performance kicks at the time), not to
mention the fact that it was extremely comfortable. As such, it was quickly picked up by retailers and sneaker fans outside
of the running domain, causing a cultural impact that permeated fashion, wellness culture, and, through the
well-timed collaboration with Parley for the Oceans, sustainability.
Despite the controversy surrounding Kanye West’s heavily-censored Billboard Music Awards performance in
2015 and the fact that you could hardly see him for the over-enthusiastic use of pyrotechnics and smoke
machines, sneakerheads all eyed the triple-white Ultra Boosts on West’s feet. Unsurprisingly, the all-white kicks sold out immediately,
officially cementing the Ultra Boost in the music and fashion worlds.
The Ultra Boost was pivotal in propelling the wellness trend emerging at the time into the instagram
obsession it became. Appealing to style and fitness enthusiasts and pros alike, it was the perfect
sneaker for running, jumping, dancing, or parkour-ing whenever and wherever you liked.
“We designed the adidas Ultra Boost to be the best running shoe ever, but at the same time, we designed it
to be culturally relevant – the best innovation is nothing without cultural relevance.”
adidas Running’s product director.
Over the past four years, the Ultra Boost has been refined, tweaked, and optimized to continuously deliver the
best running experience and bring a fresh look to the franchise. This exploration has led to four generations of
Ultra Boosts, as well as a mid-cut, a women’s specific silhouette, a weather-beating “clima” iteration, and a host of
collaborations including kolor, a kind of guise, and Stella McCartney. Of all these iterations, the most
impactful—aesthetically, technically, and culturally—were the triple black and the uncaged.
It took longer than expected for adidas to release an Ultra Boost with a sole in any other color than white,
especially as enthusiasts of the cushioning tech had been taking markers to the pearly white midsoles for a
while. But, adding color to it presented a series of new challenges as the material’s ability to expand and contract meant
that the paint was prone to cracking. In 2016, the first colored Boost hit stores via a trio of tonal uncaged kicks, followed by the long-awaited triple black Ultra Boost.
Noticing the increasing number of sneakerheads taking the DIY ethos one step further and cutting the TPU lacing cage off their Ultra Boosts, adidas’ designers were inspired and quick to respond with a new, cage-less version. The Ultra Boost Uncaged appealed to runners and non-runners alike thanks to its cleaner look and improved fit. The first inline pack,
which comprised six colorways, became adidas’ fastest-selling performance shoe ever in the US at the time, with
more than 11,000 pairs purchased within the first hour of dropping and selling out within a day.
THE NEXT CHAPTER
In its short life so far, the Ultra Boost has made more of an impact in fashion, sport, and culture than most
sneakers do in a lifetime. But its journey is far from over. Promising “The Best Running Shoe Ever,” adidas’ design team
have their work cut out and we can tell you that the brand with The Three Stripes has big plans in the works for
2019. It’s a hefty legacy to uphold, but with Ultra Boost as adidas’ vehicle for pinnacle performance technologies to
drive running forward, our hopes are high.
“We found out quickly that running is changing faster than ever before, so we needed to question everything
about the shoe, forget everything we knew about running, and start from the beginning,” explains Amm.
Watch this space for more updates on what’s next for the adidas Ultra Boost coming up in Part 2. Meanwhile, cop
the original Ultra Boost in its OG colorway for one week only, here.
- Videography/Photography: Ahmed Chrediy
- Project Manager: Johanna Gerhardt