There's no other sneaker reviewer doing what you're doing right now. Amazing

@TiffanyBeers

5 жыл бұрын

Thank you!

I definitely want to hear more about the molecular chemistry of open cell vs closed cell foams (polyurethane). For example, how an Air Jordan 3 midsole from 2003 differs from one made in 2007 vs one made today. I’ve seen paint chipping from ones in 2007 that require restorers to repaint the midsoles but hardly see any cracking on the actual midsole itself. I’m sure this has to deal with the fact Nike is using more closed cell foams vs open cell ones.

@BackseatJuice

5 жыл бұрын

MJO23DAN Open cell allows for moisture which eventually crumbles the paint/midsole. Closed cell allows for minimal moisture and is less likely to crumble over time.

@mjo23dan

5 жыл бұрын

BackseatJuice yes I know how it works. There has been a shift in that with Nike.

@iandeleon8132

Жыл бұрын

I know It's been 4 years since this video and your comment on this video, but does anyone know if Nike (and all other companies) have moved to more closed cell foams so we won't experience crumbling on deadstock sneakers decades from now? If there was a move to these foams, does anyone know when? Also, have they moved on to even newer materials, EVEN ON RETROS, to where crumbling will be minimized in the future? Thanks!

@mjo23dan

Жыл бұрын

@@iandeleon8132 from my personal experience, I haven’t seen paint crack since the mid-2000s. It does seem as though Nike has slowed down the crumbling process by continuing to use closed cell foams. Whenever I see individuals posting restorations on Instagram, they’re mainly working on pairs from the early 2000s and older. Anything past 2008, they are mainly just regluing shoes.

@iandeleon8132

Жыл бұрын

@@mjo23dan Good to know, thanks! Well, maybe it's good I didn't become a sneakerhead till way late in life. Otherwise, I'd probably have OGs from the 80's and 90's with crumbled soles, hahaha.

Thank you so much! damn KZread needs to appreciated this series especially sneaker heads.

This sneaker knowledge video was by far one of my favorites! I learned so much from you in just 7 short min...keep it up!

I LOVE this series! It’s gotta be my favorite thing on the internet right now. Keep it up!😁

Offset is an interesting topic. I used to sell sneakers and when business women would come in and try on shoes they'd always say it feels like they were falling backwards. At first I thought it was strange, until I realized that they were wearing heels all day and going from heels to athletic shoes created a huge difference in offset. So ladies, switch to flats or your old running shoes before you shop for new ones.

Very informative! You are definitely filling a much-needed niche in the sneaker-review world.

here's a pretty standard foam-based midsole, the pegasus 35. next, we have a pretty standard non-foam midsole, the nike vapormax moc acronym collab.

I'm so mad that I'm just learning about your channel!!! You're the best.

So glad I discovered this channel! Your videos are so cool and informative. 😊

@TiffanyBeers

5 жыл бұрын

Thank you!

@melissajeancorum7710

5 жыл бұрын

You're welcome! More power to your channel! Keep putting up amazing content. Love your work!

Fav!!! ❤️❤️❤️❤️❤️ I hope to be a sneaker/ textile engineer someday and I just discovered your series on sneaker knowledge and that's just fire 🤤 keep it up

Great vid. I always wanted to know about the differences in the mid sole. Thanks

Great video!

Very educational, thank you! 🔥🔥🔥😍

great video. thank you

Here's a topic where expert knowledge can be very interesting: "Energy return". Besides that, I'm very interesting to know how important brands, like Nike or Adidas, use science in order to create their running shoes.

I love this series! My inner sneaker tech nerd is happy!! Looking forward to more! Are you planning to dive into deeper with regards to midsoles? Would love to see the evolution of the types of midsoles and maybe the progression from polyurethane to phylon midsoles ...and cup soles Or why would one choose to use a double lasted midsoles over traditional and vice versa. Keep it up TBeers! (a little call out from outside the box)

@TiffanyBeers

5 жыл бұрын

thank you for the suggestions and kind words. Also thanks for listening to outside the box!

thank you QUEEN , u should add more how to , science method into fabrication so we can learn more , great series

Speaking of midsoles, have you looked into Saucony's Everun? It's similar to Boost, but a bit firmer. They have a few shoes that use it such as the Freedom ISO which has full length Everun and the Ride ISO which has a dual density midsole with Everun being the top layer.

How about a collection video please. Considering your background I'm sure I'm not alone in wanting to see it.

Oooooh the air Jordan 23! My favorite Jordan. Did you work on any basketball shoes at nike?

I hope you can tell the diffirence between the boost vs react when it comes to long usage? And how does it holds up when you put it on your feet for longer hours...

Yes! Asked and I received, anatomy of the sneaker. #first

"Running is a linear sport" Ha ha...You haven't seen me run :)

Hello, I really like these educational videos. But it would be cool if you had a deconstruction of a shoe. I also understand that can get expensive

Best for Running on hard surface , Please help

Is Nike going to be able to produce enough Pbax midsole material to supply the new version of the VaporFly 4%? With the Peg Turbo now using some of this material I am curious to see if the new VaporFly 4% will be only available on a limited basis like the first edition.

@TiffanyBeers

5 жыл бұрын

HI! i would have no idea about this. someone from the brand would have to answer this question.

I have a question about midsoles. When a midsole is off-white, as it is often the case with "vintage" reissues, is it to simulate an aged shoe, or is that how midoles actually were made back in the day?

Hi Tiffany. Since you worked at Nike, what's your favourite midsole cushioning system (or foam) and is there any type of foam that Nike hasn't used so much in the recent years that you feel like could've been used more? Also , aside from Boost and Bounce (which we all know), is there any other cushioning system or foam that you really like and may not be so popular?

@TiffanyBeers

5 жыл бұрын

i really like react. for me, my size and activities, it is my current favorite foam.

@namcis1903

5 жыл бұрын

@@TiffanyBeers thanks for the answer, I'm yet to try react cushion... But I trust in your opinion, when you say it's that good!

@jolynsalgado3415

5 жыл бұрын

@@TiffanyBeers you like the react but you love the boost cushioning right? 😊

Question, Years ago Nike used some kind of gas to fill the "air" bags in old Nikes, but they changed that GAS because it was bad for environment ¿do you remember what they used nowadays to fill the Air system? thanks

@TiffanyBeers

5 жыл бұрын

i do not recall.

Huh.... interesting. Owned a pair of puma soccer cleats with metal cleats and I never understood why rivets would dig right into my feet.

I noticed you didn’t mention drop in mid soles, I wear a lot of skateboard shoes and I’ve noticed that a lot have a vulcanized rubber outsole or cup outsole that covers the side as well and then the cushion pretty much all comes from a super thick insole midsole combo. Why would a company choose this style over a more traditional method?

@TiffanyBeers

5 жыл бұрын

Offset and drop are the same thing. I’ll cover cupsoles in the next midsoles video.

@6ix835

5 жыл бұрын

bin r Stack height & offset are lower (vs running shoes) as perf objective is board/deck feel. Rubber extends to sidewalls for durability & grip as for many tricks (& basic ollie) the lateral sidewall of your front foot is often scraping the board/deck. Love the series Tiffany, keep up the great work!

@Dibanator

5 жыл бұрын

I’m talking about super thick insoles that basically act as the midsole cushion, some people call them “drop in” midsoles, because you can take them in and out of the shoes. The insole acts as midsole of the shoe, so if you took it out the shoe it wouldn’t work properly. Sorry if I worded my first comment weird.

@Dibanator

5 жыл бұрын

Similar to the Kobe AD NXT 360, where the insole is also the midsole cushion.

@6ix835

5 жыл бұрын

bin r thx for clarifying. yes, got it. an example is vans ultracush. objective is to provide 'crash protection' w/ a thicker insole, but at the same time NOT sacrifice board/deck feel. both the insole + board/deck flex absorb impact when landing aerials. problem w/ TPU/eTPU/midsole foams is lack of ground/deck feel. that's why

how do you feel about poler going out of business :(

This is beautiful! Sit behind an office desk! 🇺🇸🗽💡

is PROFOAM mid sole better than IMEVA mid sole?

You should teach this in school

Is that the motersports 5s over your shoulder

@colt-mz3pr

5 жыл бұрын

Wow just wow my all time favorite sneaker .its two of my favorite things motorcycles and sneakers

Hi Tiffany! Great video! Loving this series. I have had a question on my mind for a while. Do they take into account size/weight of the user when making a midsole? Or rather, how much does a person's size or weight affect the durability and functionality of the midsole? Example: Size 15 boost for a 200lb person vs size 15 boost for a 350lb person, vs a size 8 for a 120lb person? Do these things matter when developing a midsole? Or do they develop a foam for a specific sized person and apply it to all sizes? Is it a negligible difference? Thank you, Sneaker Friend!

@cheeseburgerplain

5 жыл бұрын

I think generally no. Brands develop their shoe based on a sample size, lets say US 8. and do most of performance testing in this size first. Later on, they may do testing on extreme sizes as well, but sole compounds would be the same. there might be slight difference on how the outsole/reinforcement bars/midsole are shaped to support the bigger size. However, on a sport or market where the average size are bigger like rugby or american football, the tests are done on a bigger sized shoes, like US 10 instead of 8.

"EVA Midsole vs Cloud Foam vs IMEVA midsole vs Injection EVA midsole" Please explain

@JosephBrendon16

3 жыл бұрын

Yes, please!

Could have used a more modern basketball shoe for this video

How to know if my shoe has any offset?

@valdeaunia

5 жыл бұрын

if not specified in the shoe's specs, you can get the difference between the 'stack height' (distance from the ground to your foot, basically the midsole height) of your heel and your forefoot.

Can a midsole be too soft that it pinches and can it have a midsole does not have any benifits due to its strobel board

@TiffanyBeers

5 жыл бұрын

not sure about the midsole pinching, seems plausible. yes the strobel can and does completely negate the benefits of the cushioning system in shoes all the time.

@ihate2signinyoutuify

5 жыл бұрын

so i shouldn't feel crazy cutting and plying it out when i hated my shoes I can't play out the support on the mid foot which makes it feel like there is a stick in the middle of my foot since i'm scared it would worsen the shoe upper as its adidas boost and its seems liek its glued on

We've all graduated to 'sneaker nerd'.

are you talking Altra with their 0 drop shoes?

@TiffanyBeers

5 жыл бұрын

i know they do have 0 drop shoes, but i think there are a few others that have zero or close to zero.

@vaxick

5 жыл бұрын

@@TiffanyBeers Merrell is very big into 0mm drop shoes as well. Other running companies typically stick to around 4mm for their lowest drop shoes. In recent times though, a few running companies have been moving towards making much of their shoe lines have heel drops in the single digits.

Are you an Illuminati?

R u married?