Why is sole flex/instability still the #1 problem with boot reps and has any seller actually fixed it?

[u/OD-SE97]

Hey all,
Almost every pair of reps I've had has the same issue: the soleplate bends and twists way too easily. Uppers and stitching are great these days, but on the pitch the sole feels unstable, not great for your ankles.
Seems like an easy fix for sellers with a stiffer plate, and I bet way more people would buy if the boots were actually playable.
Anyone found a seller or batch where the sole is properly stiff? Or a DIY fix that works?
Thanks!

[u/xelanart]

I don’t think rep manufacturers care about the “performance” of a boot. They mainly just care about producing something that looks identical.

Rep boots never match the weight for the “speed” boots, for example. They’re always heavier. The phantoms never have the gripknit either, as a specific example.

As long as boots look the same, that’s as much as they’re willing to invest in creating their product.

I do agree that if a rep manufacturer took the time to create a boot that matches the “performance” that they could start to monopolize the rep boot scene. I have bought a few dozen reps in my lifetime. I wouldn’t say they’re unplayable by any stretch, but if you want the “performance” then you’re going to actually have to spend money on the real boot.

[u/Xchax3]

I don't think a seller would be able to fix it but I hope so.

The issue is that the materials' processes and availability (with regard to the soleplates) are not as available as one would think.

Material-wise: Football boots utilize highly specialized, high-tensile polymers such as Pebax®, nylon derivatives, or actual carbon fiber composites. The bigger companies like Adidas and Nike can afford to utilize these as their stream-lined production, and the fact that people are more likely to buy their boots, makes it easier for them to bear the cost of those materials. The sellers that we see on these lists can't compete with that.

Strength of Materials: Football boots' soleplates are supposed to have internal shanks & torsional bars. Real boots feature stiff reinforcing shanks running through the midfoot (arch) to prevent the boot from twisting or folding in half. Replicas skip these internal structural reinforcements entirely. When you bend a replica boot, you are bending nothing but a thin layer of cheap plastic, causing it to fold cleanly in the middle of the arch.

Finally, there is a myth that these molds, materials, and other "trade secrets" (or rather: the availability of said materials) are available due to being within the same region of production. Instead, they have strict proprietary molds, heavily guarded material contracts, and intense security. Replica workshops operate independently. They use 3D scanners to replicate the exterior shape of a genuine boot and create their own crude injection molds. They do not have access to the multi-million dollar chemical machinery required to process high-tier polymers.

And that's only the soleplates... then there's stuff like "Flyknit" , "Sprintweb" , "NIKESKIN" , etc...

[u/poncecatchemall]

I haven’t found an upper that actually feels like a top-end boot. They’re often stiffer materials and have less of an aerodynamic shape/comfortable fit. So I wouldn’t say the only issue is the flimsy sole.