Shoes sizes are really messed up. They are not consistent. I tried three different pairs with same size and one of them felt less tight than other two. There’s a slight variation so be careful when you buy Next%. Half of the people say true to the size and the other half say go for one size up.

I hope everyone looks at the shoe specs first. It’s a 4mm drop. Going to be VERY different from the 8mm Next and 11mm 4s

I wish the drop were more to be honest - I like 10mm-11mm.

You don’t do anything new on the race day so that totally makes sense. No matter how good they are I would be hesitant to run in them without any training.

Has anyone seen when the tempo next % are being released? I was thinking they’d come with the Alphafly today but does not look like they were released.

I logged in and tried to buy a pair at exactly 1000ET when it opened up and my size (11 and 11.5) was already sold out and by 1001 they were sold out of just about every size. Such BS

I logged in and tried to buy a pair at exactly 1000ET when it opened up and my size (11 and 11.5) was already sold out and by 1001 they were sold out of just about every size. Such BS

Got the text message, clicked the link, the only size available was 7... but the price of $275 is not as bad as I thought it would be. Guessing the stock that could have hit the market is wholly impacted by their free shoe giveaway in Atlanta.

So is StockX like an ebay? Or are they like a broker that re-sells shoes like brokers use stubhub?

Indeed, most Nike pro have them for awhile.

The reason some Nike pro will not run them is, IMO, the consequence of "performance spreading".

If you look in detail the lab results of tests of the Nike VF 4% (performed in 2016, 2017, ...with elite or semi-elite runners) you noticed the "average gain" of the VF4% was around 3 or 4% compared to old flats (Streak, Adios). This was the origin of the name : 4%

But the individual gain for each runner was roughly between 0% and 6%, depending on the runner. This is "performance spreading". Not all runner respond the same way to the VF4% in term of performance (let aside stability). Each runner respond differently to the front/heel softness, plate, ... all this coming from the high stack of good foam + plate.
This was much less the case with old flats, as they were very very similar, "perf spreading" for these shoes was nearly negligible.

6% of difference between runners, with same shoes, is not negligible, it is huge.

The VF4%, the Next and the AlphaFly are different shoes. Maybe the average gain of the Alphafly comparing to old flats is "in average" 5% (just as an exemple), better than the VF4%.
But again, individually for each runner the gain can be between 0 to 10% (just as an exemple).

Each runner individually respond to each of these shoes in a different way. Maybe the Next give you +5%, and the Alphafly +3% compared to old flats. Or the opposite.

Maybe you respond better to the Next, maybe you respond better to the Alphafly. So, if you are a Nike pro, you test and then you choose. Except if your contract prevent you to choose.

If you are not a pro, like me, the only way to know which shoes are best for me will be to test them seriously. How do I really respond to each of them ?
There is now 3 Nike models, 2 Saucony, 2 New Balance, one Brook, ... probably having this kind of "perf spreading" due to individual runner response to the foam / plate shape / geometry / stability / ...
Choice will take into account performance, confort, stability, look and price.

Or you can rely on testers such as RTR.
For exemple, from initial tests, the Brooks Hyperion Elite seems seriously targeted at runner much faster than me.

Maybe we can anticipate there will be a service similar to "bike fit" or "wind tunnel" to have a real insight on how each of us respond to each of these "new generation" shoe model. Several % gain choosing the right model, heck, why not.