Adidas running | MEET US IN THE HOT PURSUIT OF INCREDIBLE ENERGY RETURN | ULTRABOOST 21
Woman 1: The first thing it's gotta do,is to make you want to run.
Man 1: If we talk about Ultraboost, it's always about energy and energy return.
Alice Alfaroli: We really start this project on having one single vision together.
Sam Forester: Definitely it wasn’t the job of one designer. It was a huge collection of team members looking at weight,looking at cushioning,and looking at stiffness.Yeah this triangle was a good one to get our heads around.And when you increase one variable, you often impact another in a different way,so a bit of a crazy Rubik’s cube which we had to figure out.
Woman 2: We had so many different great ideasand many different perspectives as well.
Sam Forester: And sometimes when you go extreme on a Boost, what does that then do for performance?What does it do for the gait cycle?
Woman 3: We all agreed for the need of more Boost.
Woman 1: We redesigned the midsole from the ground up.
Sam Forester:Probably the biggest innovation or explorationwas on the LEP torsion system.
Woman 4: A revolution of the torsion spring that we had in previous generations.
UlisseTanzini: We also call it sometimes the ‘Little Extra Push’.
Alice Alfaroli:We started from just like the knit.So concentrating on the new structure, how to highlight it and energize it.
Woman 2: Using a Primeknit+ solution which is much more dense and much more smooth in its surfaceand much more precise.
UlisseTanzini: OK do you want me to be honest? Or do you want me to…I’ll give you an honest answer and then we’ll see if we use it. We have never used Boost in this wayand we have never sculpted it that dramatically before.
Sam Forester:When we put a shoe in the lab and we test the shoe, its where you see whether our decisionsand our, I guess, creative energy has gone in the right direction.
Woman 2: We had these hundreds of hours of sketchingand then there was only one single sketchthat took basically two minutesand that was the key sketch in the end.
Woman1: Fine-tuning the weight, cushioning and stiffnessmeant we would unlock more possibilities for greater energy return which felt truly amazing.