Is boost a bust?

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I never understood why boost is "dead" now, their very comfortable and most of the shoes are a very good active wear/everyday shoes

I think one thing to consider is that BOOST lasts SOOOOO much longer than standard EVA foams, so even though Zoom X and even adidas LightStrike foam is bouncier, they don't stay that bouncy for nearly as long as Boost does

Simple answer is : no. It's one of the best cushioning there is. I'd buy a lifetime supplies of ultraboosts 19. Super comfortable and surprisingly durable.

I'm starting to get really impressed by the iterative testing on the energy return from the foam. Cutting out little cross-sections to remove variables and standardize the process as much as possible shows you really are committed to trying to get meaningful results that can be compared and it's not just a cool-looking garage science test.

Boost actually has changed throughout the years, early boost was softer than the UB2022 which is more firm because the new shoes are more focused towards performance.

I'm a heavy dude, around 105-110kg in weight, with bad joints and pain in my feet whenever I'm on my feet for over an hour. My first contact with Boost foam was via a pair of light Puma sneakers with their version of Boost foam and knit upper. I loved them because they were light and breathatble but most importantly the comfiest shoes I ever had. That Boost foam was soft and bouncy really made it easier for me to stay on my feet longer. Also, those Puma sneakers were really cheap, like 2-3 times cheaper than any Adidas sneakers with Boost foam, let alone the Ultraboost model. Which kinda tells you that Adidas is ripping people off on it, probably based on the hype and marketing that Boost got. From then on, I didn't want to wear any sneakers that didn't have Boost in them. My current ones are Adidas ZX 2K Boost and they're damn comfortable. Boost really makes walking easier for my fat ass... On the topic of those soft foams, Boost is considered a "boomer" one. There's a bunch of more recent and modern soft, responsive foams from multiple brands. Nike's ZoomX is one of them, New Balance has Fresh Foam X in their 1080 V12 model, Puma has their Nitro foam, I believe Asics, Mizuno and some others also have their versions of an ultrasoft and bouncy foams...Some general rule to them is that the softer a foam is, the lighter and less durable it is. ZoomX falls within that very soft and bouncy but less durable category and Boost is slightly less soft and bouncy but much more durable and retains its shape for longer without being squished or warped. I haven't tried those other foams for I can comfirm that the Boost is indeed durable...that knit upper on my 3 year old Pumas started to tear, the outsole is worn out but the Boost midsole is just as soft and bouncy as it was.

Boost and double stacked Zoom are my favorite cushioning technology of all time. The main advantage of Boost is how if performs in a wide range of temperatures and how quickly the cushion springs back; no dead spots. Great thing is seeing the evolution of all these foam tech.

I was working in running retail back in 2013. I remember when I first heard about Adidas Boost from the sales reps. It sounded absolutely incredible and I made sure to buy a pair when they first came out. Running on those shoes back in the day was nothing like I felt before. You literally felt like you could keep going forever.

I’d love to see a longevity study for zoomx vs boost. How long do they last before they lose responsiveness.

I love seeing the evolution of your tests methods, it's getting real interesting! Thanks

Just wanted to comment that I happen to watch a vid from 2 years ago from y’all and you mentioned having to rush the vid out and the noise in the background and talking bout being excited about saving enough to move into a new shop and get newer equipment and tools to do better tests and to watch that vid and watch new ones now makes me happy for some reason. Keep up the great work😬

love the new bounce test!! amazing to see you always thinking about how to do it better!

I think another important metric might be the amount of force that is transferred to the ground right beneath where the ball hits the foam. Maybe boost doesn’t return as much energy as zoomx but maybe it distributes the force of your heel hitting the ground better. It would also be pretty cool to see how high the ball bounces by itself to see how much energy is lost/conserved by these foams. These videos are awesome though, not many people are doing these direct tests like you are.

I have triple black ultra boost 3’s that I’ve had for over five years. No running just casual and light yard work. They’ve held up surprisingly well. The boost midsole is painted black and no paint is chipping off which is pretty surprising. The knit upper is more comfortable than my ultra boost 1.0s but the midsole is about the same. Gonna give the newer models a try if i see them on sale.

Love how much time you guys put into coming up with better tests

If I'm not mistaken, the boost on various version of ultraboost is different. The classic ultraboost is much softer if compared to the ub 19/20 because both of them got increased density by around 20%? and for ub 21-22, they increase the density even more than the ub 19/20. Perhaps a lightstrike shoe gonna be a fair comparison for zoom x as it is more suitable for running..

One thing that all the newer foams can’t beat is how the boost able to maintain its form and bounce after many miles where most evas and pebas foam would shrink and lose / have reduced cushioning. I think boost is still unbeatable at least in lifestyle - comfort category and running in general due to the longevity of it.

Would you please test: 1. Addidas' most expensive foam, the Addidas Lightstrike Pro foam, in its most expensive running shoe - the Addidas Adizero Adios Pro 3. 2. Asics' most expensive foam, the Asics FF Blast Turbo foam, in its most expensive running shoe - the Asics Metaspeed Sky Plus. 3. New Balance's most expensive foam, the New Balance Fuel Cell foam, in its most expensive training shoe - the New Balance Fuel Cell Super Comp Trainer. It's really interesting to know if their technology truly justifes the extremely expensive price tag.

Loved the testing in this episode! Really cool to see!