HOW RUNNING SHOE FOAMS COMPARE IN 2021

[@lifephorce]

Top Geeky Shoetuber Award 🏆✅☺️ How about 1 video on your top 3 5K, 10K etc scattered thru the month 🤔

[@AlexFilitti]

Thank you! Not sure I’ll manage with all the videos already planned but there will be at least one top3 video in the mix 😉

[@lifephorce]

@@AlexFilitti Yay! ☺️

[@ericpetersen8645]

Loving the geeky topics. Keep them coming! Would love to see a matrix with the shoes you mentioned under the durometer scores. That would really help the runner understand their preferred “range” and consider new releases from other companies. I wish I could try them all.

[@AlexFilitti]

Thanks Eric and great suggestion! There’s something coming next year that should partly address your suggestion 🙂

[@TolunayOrkun]

Hi Alex, I am wondering what type of durometer you are using. I recently got a pair of Deviate Nitro Elite (version 1) and my Shore A durometer score for Nitro Elite foam is significantly higher than yours. Mine is a different colorway than yours (White-Dark Slate-Fizzy Light). I did a pass over the group of shoes with my durometer and scores more or less correlate with what you published at Meta Endurance site but my Deviate Nitro Elite is more like 29-33 depending on where I take the measurement on the shoe.

[@Reggy9]

My wallet will bleed in 2022. Sooooo many very exciting shoes coming up.

[@AlexFilitti]

Yes! Soon a super exciting video on that! 😉

[@Reggy9]

@@AlexFilitti Already saw some great new releases from the Running Event in Austin. Puma, Asics, Hoka, "Craft", Reebok, Saucony - a lot of crazy and exciting stuff. 👍😎 Have a nice weekend, Alex.

[@AlbertoBerardi]

The video topic is very interesting. Durometer data are sometime deceiving but an updated database/chart with foam type linked to every shoe model would be usefull. Ex: 1) model 2) proprietary foam name 3) foam type + foam ingredients 1) Brooks Hyperion Tempo 2) DNA Flash 3) Supercritical EVA: CO2 injected EVA.

[@Run4un]

Yes, Alex just gave us nice comprehensive summary of foam durometer, but I agree, the next/optimal meaningful use step would be to tack on the shoes utilizing said foams. For example, someone on DNA FLASH (Brooks) may find easier transition to another brand with similar foam (Skechers' Hyperburst). Please please do!🙃

[@AlexFilitti]

I love the suggestion! There's a tool coming up early next year that should address your great idea :-)

[@Run4un]

@@AlexFilitti that's amazing. Thanks Alex! Looking forward to it! Great content!!👍☀️🙂

[@jameschaves5723]

And I thought the NB fuel cell was soft!! So Puma is softer?

[@AlexFilitti]

Nitro Elite is a little softer yes

[@thomasdamato9430]

Alex, I love your geeky content it explains a lot because we can apply it to the particular shoes we as runners prefer and it helps with future purchases.

[@AlexFilitti]

Thank you, Thomas for the very nice comment! Much appreciated!

[@sharkymoon422]

You would make a very pretty girl, girly full face with a very small body.. Plus reeling out the stats reminds me of my sister.. Good info sis ❤️🙏🏻

[@jamesb.walker9177]

I find the Co2 EVA gets harder with cold temperatures. (ie MaxRoad 5 and Hyperion Tempo.) Possible to make a short list of shoes that use what? It would be very useful/

[@AlexFilitti]

EVA in general is sensitive to temperature changes! There’s something coming up early next year that should address your suggestion 🙂

[@SofaKingA]

You're absolutely right! The Maxroad 5 felt like I was running on light weight bricks in the cold temperature. I had to return them. I was not getting any energy return and my lower back started hurting as well after one run. I really wanted to like that shoe.

[@jamesb.walker9177]

@@SofaKingA Also felt he lower back problem, it is a shame as I had some pretty good runs on the summer with them. I still picking up the More V3 for lower speeds it is just such a nice comfortable ride and quite responsive too.

[@robin29991]

The ZoomX in the Next% 1/2 always behaved a bit weird for me. I have 3 pairs and they all feel slightly different to the touch and under foot. Not to mention the differences between the top and bottom layer.

[@AlexFilitti]

I heard somewhere that they even had discrepancies between factories. So no doubt the end products could be quite different from one to another.

[@TimGrose]

Yeah I always felt the original lime ones felt softest to me.

[@ninjadr93]

Would be really interesting to know how these foams last and there durability. Whether they keep their softness over time

[@cosmonaut42]

Very interesting 🤔

[@AlexFilitti]

Thank you!

[@sotimak6554]

Awesome video! Watched twice! We need this chart with fotos of the best known shoes under it someday 😁

[@AlexFilitti]

Thanks Soti! Great suggestion and I will try to make this happen :-)

[@daveaskew2105]

Great vid.....I thought Fuelcell was an autoclaved eva and not tpu? Does nobody know anyone who can do a chemical analysis of Lightstrike Pro foam lol.......

[@AlexFilitti]

I think someday I'll pay a lab to do it haha ;-) No fuelcell is definitely autoclaved nitro tpu!

[@terrykaminski9385]

Would be great if you posted your graph you used in the video and then a table explaining what brands and models use each of the different types of midsole compounds.

[@AlexFilitti]

Thanks Terry - many people actually asked for it so I'll work on an updated version! Cheers

[@BostonMarathon255]

By far the best video on this channel, and on this topic in all running shoe channels. Great work, Alex! Love your rational data driven style.

[@AlexFilitti]

Thank you, Jason! I had you in mind when doing it as you asked for it a while ago if I remember well :-) Cheers

[@macoyupadoodle]

Cant wait to see what the new releases and if there will be tweaks to the compound next year.

[@AlexFilitti]

So many cool stuff coming up soon! Stay tuned for a video on that soon 😉

[@tobiasrundinschrder7492]

I believe Puma is not the only producer to use Nitro Infusion as Brooks also does this 👍

[@AlexFilitti]

Nitro Peba only at Puma for sure, other nitro infusions are EVA. 99% sure of this!

[@i.p2088]

Brooks Nitro (Hyperion Tempo) feels very different to the Puma Deviate Nitro Elite. The Brooks feel more like the Skechers nitro.

[@blaisecamp553]

Alex now that you’ve explained that aspect of the foams. Tell us about how each one compresses and rebounds. I was always led to believe hoka was the king of softness on the pavement. But to be honest they seem to be heavier and not as plush softness as I read and heard about. Great channel

[@AlexFilitti]

Thank you Blaise! More geeky videos coming up 😉

[@Lyingfigure]

as you said it, "was" now there are tons of better option, the 2 "impact dampening" are the novablast, and the invincible (if you keep good form, as you can easily bottom out on them, but it's by far the softest)

[@sebjak76]

Super interesting!!!

[@AlexFilitti]

Thank you!!

[@Rich-zb7vc]

are you using an Asker C device to measure durometer? the scores seem very low, I think you'd bottom out on anything below 40

[@AlexFilitti]

Hi Rich, no I’m using a Shore A durometer. Not ideal but I compared my values against some references and I had limited discrepancies.

[@Rich-zb7vc]

@@AlexFilitti I think Shore A is more for outsole hardness, but i guess the results in relationship to each other would be important, its a lot of work I'm sure

[@AlexFilitti]

You're right the Shore A isn't ideal here and would work better for harder stuff. I may upgrade the whole testing setup but it's a "step by step" process. Thank you for the chat

[@TolunayOrkun]

Shore C is for harder material than Shore A. There is a KZbinr named "Tiffany Beers". She is a "Plastics Engineer and former Nike Innovator" who designed some of their shoes and she measures the midsole softness/hardness using a Shore A durometer. I'd say she knows what she is doing. So, Shore A is the right one to use for midsole.

[@jasegalaxy74]

Great video

[@AlexFilitti]

Thank you!!

[@TOXIN543]

It's the lower layer in the Vaporfly next% which is firmer. Probably for durability. The top layer is softer for a better step in feel.

[@AlexFilitti]

Thanks for correcting me, makes more sense like that indeed :-)

[@jakeb6703]

man, instant subscribe for me after seeing durometer testing, so lovely to see (relatively) hard quantitative numbers on these foams, rather than the marketing info, qualitative reviews. many channels seem to be doing a pretty good job describing the actual chemistry of the foams, and the stack heights and drops but this feels like the next obvious step forward ; )

[@AlexFilitti]

Thanks for the nice comment, Jake and welcome on the channel! I hope you will enjoy the upcoming content, some geeky stuff but also some "lighter" topics and approaches :-) Take care

[@ariftirtoaji2278]

First

[@AlexFilitti]

Good job 👊🏻