Plantar Fasciitis Insoles
The Plantar Fascia Isn’t
Broken. The Ground Is.
Arch support makes sense — it protects the fascia the same way a cast protects a broken bone. But a cast that never comes off disables the mechanism it was protecting. And the reason the fascia overstretched in the first place is still there, firing incorrectly with every step.
Get T-100 Landing Gear →90-day full refund guarantee · 99,000+ reviews · Less than 2% return rate
with your feet.
That is the problem. Not you.
For two million years, the human foot evolved on variable terrain — rock, soil, grass, roots. Surfaces that shift and tilt and give the foot’s central steering hub the three-dimensional input it was built to process. Flat surfaces deliver one signal, thousands of times a shift, forever.
There Is a Holistic Solution
Your body already knows what correct feels like. It just needs the right first frame.
Fix the geometry at heel strike and every system that was failing restores itself — the fascia, the energy return, the circulation. Here’s what happens when someone gives their body back what it was always supposed to have.
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Why Everything You’ve Tried Is Incomplete
Every insole ever sold was built around a snapshot of your foot standing still. A static shape. A photo. It can redistribute pressure. What it cannot do is change how your foot moves through its full gait cycle.
Landing Gear is not a shape. It is the runway — the geometry that tells your foot exactly what to do the moment it touches down. Your foot already knows what to do. It just needs the right surface to land on.
Without that first correct angle at heel strike, the foot never gets its cue to start moving — and every system downstream, from your ankle to your hip, waits for a signal that never comes. Your plantar fascia has been paying for that mismatch ever since.
An insole is a photo. Landing Gear is the movie your foot was built to run.
The Problem With the Solution
Arch Support Is a Cast. A Cast That Never Comes Off Creates Three New Problems.
The logic behind arch support is sound. The plantar fascia is overstretching — so you immobilize it. Reduce the load, protect the tissue, let it recover. Same reasoning as a cast on a fractured bone. Not wrong. Just incomplete.
The cast analogy breaks down in three places. And the third one is the one nobody talks about.
Three Problems Arch Support Creates
Why the Cast Analogy Eventually Breaks Down
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The Holistic Solution
Fix the First Frame. Every System That Follows Restores Itself.
The subtalar joint (your foot’s central steering hub) rotates on a precise diagonal axis — 42° from horizontal, 16° from the midline of your body. When the geometry is correct at heel strike, four mechanical systems activate in sequence.
And the plantar fascia — no longer asked to absorb what the joint was always supposed to handle — finally gets to do the one thing it was built for: load elastically, return energy, and recover.
Two million years of evolution shaped your foot to navigate uneven terrain. Modern concrete gave it the same zero-degree surface, every step, forever.
Without that first uneven angle, the foot never gets its cue to start moving — and every system downstream, from your ankle to your hip, waits for a signal that never comes.
Your body has been paying for that mismatch ever since.
An insole is a photo. Landing Gear is the movie your foot was built to run.
The Science
The Outcome Is Not Subjective. It Is Arithmetic.
The subtalar joint axis exists at a precise, measurable angle. Restore that angle and the body responds — every time, in every body. Not because we say so. Because physics doesn’t negotiate. The geometry either matches the joint or it doesn’t. When it does, the system restores. This is not marketing. This is applied mechanics.
Independent Lab Testing — Dr. Martyn R. Shorten, Ph.D.
From 1 in 10… to 19 in 31.
Same 31 subjects. Same measurement. Four conditions.
How many bodies moved into a consistent mechanical range?
The geometry doesn’t push every body to the same fixed position. It compresses variability — so force moves through the system the same way, step after step. That consistency is what allows the body to stay stable, absorb efficiently, and stop compensating.
Source: Dr. Martyn R. Shorten, Ph.D. · BioMechanica LLC · Independent study commissioned by Protalus, November 2019 · n=31
Want the full scientific breakdown of what causes plantar fasciitis? Read the full science article →
19 in 31 bodies realigned in independent lab testing · 90-day guarantee
Why We Recommend Starting Here
The T-100 Landing Gear Is the Right Call.
For two reasons.
We don’t recommend the T-100 because it is the only option. We recommend it because it is the correct starting point — for what your body is ready for, and for the shoes you were already wearing.
T-100
Most pairs last a full year. That’s the actual cost — less than a fifth of a cup of coffee, every day, for your entire body. Not $64.95. Eighteen cents.
or 3 payments of $21.65 · no interest
Works in any shoe · Free ground shipping · Lasts up to a year
Not an insole. The T-100 is geometry — engineered to the published 42°/16° subtalar joint axis coordinates, not from the foot’s surface inward, but from the joint axis outward.
The platform intercepts the outer edge of the heel at the correct angle at heel strike — placing the joint in its correct starting position before any downstream loading occurs. The rubber band loads. The second heart engages. The fascia does what it was built to do.
Same shoes. Same floors. Different geometry. Different outcome for the tissue.
90-day full money-back guarantee · No return shipping required
Order T-100 Landing Gear →Your Body Already Knows the Answer. Let It Decide.
Imagine there’s a small pebble under your heel — just slightly off-center. You don’t think about it. You don’t decide anything. Your body shifts its weight automatically. That’s not a decision. That’s your nervous system doing what it was built to do.
95 out of 100 people who try Protalus say yes within the first few steps. Not because they were convinced. Because their body recognized the geometry it was always supposed to have.
90 days. No questions asked. No return shipping. Let your body tell you what the lab already measured.
Full refund if you’re not satisfied. 98% of customers keep them past 90 days.
References
- Behling AV, Rainbow MJ, Welte L, Kelly LA. The mobile adaptor–rigid lever paradigm in human locomotion. Biological Reviews. 2023;98:2136–2151. DOI: 10.1111/brv.12999
- Shorten MR. Evaluation of Protalus Insoles. BioMechanica LLC, Portland OR. November 2019. Motion capture analysis, n=31, 4 conditions.
- Manter JT. Movements of the subtalar and transverse tarsal joints. Anat Rec. 1941;80(4):397–410.
- Kirby KA. Subtalar joint axis location and rotational equilibrium theory. J Am Podiatr Med Assoc. 2001;91(9):465–487.