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Natural cork Physio-designed 30,000+ feet

Foot Function Set

Foot Function Set

4.8 · 2,000+ verified reviews

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Regular price $999.00 USD
Regular price Sale price $999.00 USD
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In stock · ships in 24h · arrives by June 30
  • Wakes up, splays & strengthens tired feet
  • Guided 10-minute-a-day program included
  • For every level — start gentle, progress
  • Cork & natural materials, built to last
Free gift — The Foot Health Playbook e-book $19 FREE
  • Free, fast shipping
  • Secure checkout
  • 60-day risk-free trial
  • 2,000+ feet retrained
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K
“The first thing in 20 years that actually changed how my feet feel. The morning stiffness is basically gone.”
Karin M. Verified buyer

What's in the box

Massage ball, toe spacers, resistance band and balance pad — plus the guided day-by-day program and the Foot Health Playbook e-book, free with every kit.

Shipping & returns

Free, fast shipping — ships within 24 hours. Most orders arrive in 3–5 business days.

Train with the full kit for 60 days. If your feet don't feel stronger, email us for a no-questions-asked refund.

How to use it

Just 10 minutes a day: release with the ball, splay with the spacers, strengthen with the band, balance on the pad. The guided program tells you exactly what to do.

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Foot Function Set Foot Function Set $999.00
The real cause

You've been walking in casts your whole life

Narrow toe boxes, raised heels and thick cushioning act like casts on your feet — and just like a cast, they leave the muscles inside weak, stiff and switched off.

Your toes were crushed together Narrow toe box

Your toes were crushed together

Tapered shoes collapse your natural toe splay, killing the wide, stable base your foot is supposed to stand on.

Your weight got dumped forward Raised heel

Your weight got dumped forward

A lifted heel shortens the chain and tips load onto the forefoot — so every first step out of bed bites at the arch.

Thick cushion

You stopped feeling the ground

Soft, deadening soles mute the sensory feedback your brain uses to balance — so the muscles that keep you steady go quiet.

This isn't ageing. It's atrophy — and atrophy reverses.

Your foot has 26 bones, 33 joints and over 100 muscles built to splay, grip and sense the ground. Free them, train them, and they wake back up — at any age.

What's in the box

Four tools. One complete foot workout.

You don't support an atrophied muscle — you rehab it. Four tools, four jobs your shoes have been doing for you, in the right order.

1
Step 01 · Release

Massage ball

Wakes up the sole so you feel the ground again.

2
Step 02 · Splay

Toe spacers

Restores the natural spread between your toes.

3
Step 03 · Strengthen

Resistance band

Rebuilds the small muscles no workout trains.

4
Step 04 · Balance

Balance pad

Trains the stabilisers that keep you steady.

Your daily 10 minutes

Simple enough to actually stick with

Follow the guided program on the couch, while you read, or before bed. No gym, no appointments.

10 minutes a dayAdd a routine image or video
What to expect

This is training, not a quick fix

Strength comes back the way it does in any gym — gradually, then all at once. Drag the slider to see the difference.

Day 1 Week 12
Day 1
Week 12
W1
Week 1

Toes feel the stretch and your soles wake up. A few minutes can feel intense at first — then your feet relax and start to feel alive.

W4
Week 4

Less stiffness in the morning. The work starts to feel easy and your feet feel more connected to the ground.

W8
Week 8

Noticeably steadier on one leg, stronger through the arch, and more comfortable on long days on your feet.

W12
Week 12+

Stronger, springier feet that hold up — the foundation everything above your ankles stands on, rebuilt.

Consistency beats intensity. Most people feel the first changes within days.

Compare your options

Train the cause — without the knife or the inserts

Surgery is invasive and expensive. Insoles are passive and never-ending. The Splay Lab rebuilds your feet at home — for a fraction of the cost.

The Splay LabBest value Surgery Insoles
Strengthens your foot muscles × ×
Restores natural toe splay Invasive ×
Trains balance & stability × ×
No downtime or recovery ×
Active training, not passive support × ×
Keeps working after you stop Maybe ×
Typical cost $ $$$$ $$ ongoing
60-day risk-free trial × ×

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Real results

Thousands of feet, back in training

4.8 from 2,000+ reviews
Verified

After 20 years of inserts and stiff shoes, this is the first thing that actually changed how my feet feel. The morning stiffness is basically gone.

K Karin M.
Nurse · on her feet all day
Verified

I couldn't balance on one leg for more than a second. Eight weeks in I can hold it comfortably — and I feel steadier on the stairs.

D David R.
Age 64 · verified buyer
Verified

My feet were the bottleneck in my running, not my legs. Stronger feet, fewer niggles, better push-off. Wish I'd trained them years ago.

P Priya S.
Marathon runner
Verified

It hurts for a few minutes, then my feet relax and feel tingly and amazing. Without these I'm in pain — with them I'm pain-free.

T Tom B.
Restaurant industry
Verified

I bought it because I'm scared of falling as I get older. The program made it a habit instead of another gadget in a drawer.

S Susan L.
Verified buyer
Verified

Strong feet support everything above them. My knees and hips feel better since I started — the foundation finally got some work.

M Marcus T.
Lifter · natural movement
The science

Feet are muscles — and muscles respond to training

The same principle behind any rehab: load a muscle progressively and it gets stronger. The research on feet is clear.

+57.4%
Increase in foot strength after six months of minimal-footwear foot training
University of Liverpool, Scientific Reports (2021)
77%
Of US adults report having experienced foot pain
American Podiatric Medical Association (2014)
10 sec
Single-leg balance is a simple, trainable marker of how well you move and age
British Journal of Sports Medicine (2022)

Figures refer to published, third-party research on foot strength, foot pain prevalence and balance — not to results from this product. The Splay Lab supports strength, mobility and balance; it is not a medical device and does not diagnose, treat or cure any condition. If you have a medical condition, check with your doctor before starting.

As seen in
In their words

Real people, real feet, on camera

Nothing builds trust like a real face saying it out loud.

Built with experts

Designed with the people who train feet for a living

Developed alongside physical therapists, podiatry-minded coaches and natural-movement specialists — so the protocol is grounded in how feet actually get stronger.

Add expert
Physical therapist, DPT
Add expert
Strength & conditioning coach
Add expert
Natural-movement specialist
Add expert
Running gait coach
Why we built this

It started with feet that wouldn't stop hurting

After years on hard floors, my feet were chronically sore and stiff — and every "solution" I was sold just propped them up instead of fixing anything. When I learned that feet are muscles that atrophy like any other, everything changed. I stopped supporting them and started training them. The Splay Lab is the simple daily protocol I wish I'd had at the start.

The Splay Lab team
Founders
Founder Q&A

The questions everyone asks us

We made this because the foot category is full of hype and confusion. Here's the honest version, answered on camera.

Why build a whole kit instead of selling spacers?

Because feet don't get stronger from one passive gadget. You need to release, splay, strengthen and balance — and you need a program that makes you actually do it. That's the whole point.

What makes this different from what I've already tried?

Most things you've tried were passive or piecemeal. This is a sequenced, active protocol with the tools and the daily plan together — so it doesn't end up in a drawer.

How long until I notice something?

Most people feel their feet wake up on day one. Strength and balance are a few weeks of consistency away — it's training, and we're honest about that.

Honest answers

Questions, doubts and fair objections

I've tried toe spacers before and nothing happened.

Spacers on their own are passive — like glasses that only work while you're wearing them. The Splay Lab is active training: you release, splay, strengthen and balance, so the changes come from your muscles getting stronger and stick around after you take everything off.

Isn't this just a gimmick that won't fix my bunions?

We agree that passive gadgets don't change bone structure — and we don't claim to. We help you build foot strength, mobility, balance and comfort. That's what training delivers, and it's what most people are really after.

Will it actually work for me — at my age or with my condition?

Muscles respond to training at any age; the research on foot strengthening includes older adults. That said, we're not a medical device. If you have a diagnosed condition (arthritis, plantar fasciitis, diabetes, an injury), check with your doctor before starting and ease in gently.

I don't have time for another routine.

It's about 10 minutes a day, and you can do most of it on the couch while you read or watch TV. The guided program tells you exactly what to do so there's no thinking involved.

Will it hurt?

It can feel intense for the first few minutes — then most people describe their feet relaxing and feeling great. Start gentle and progress slowly. Discomfort is normal; sharp pain is your cue to back off.

How fast will I see results?

Many people feel something immediately — looser, more awake feet. Real strength and balance build over weeks, the same as any training. Think months, not days.

Can't I just use a lacrosse ball and do it for free?

You can buy the parts piecemeal and guess at the routine — most people do, then it ends up in a drawer. The kit gives you the right tools and a sequenced program you'll actually follow.

What if it doesn't work for me?

Train with it for 60 days. If your feet don't feel stronger, more mobile and steadier, email us for a no-questions-asked refund. The risk is on us.

60day trial
The risk is on us

Train with it for 60 days. If your feet don't feel stronger, get every cent back.

Use the full kit and follow the program. If you don't feel a real difference in strength, mobility and balance, email us for a no-questions-asked refund. Keep the program either way.