Do z liner insoles actually absorb shock? Not really… but ours do.
Here’s the data
Z-Liner Foam → Compresses fast, absorbs less than 10% of impact energy.
FP Kingfoam Technology → Scientifically proven to absorb up to 90% of impact energy.
Result? With Z-Liners, your joints take the hit. With FP, the insole does.
These insoles have a similar profile to z liners, cost less and actually absorb shock!
FP kingfoam elite insoles $22+:
For all foot types.
Best for high arches.
Our kingfoam Elite Insoles line absorbs the shock and stabilizes your heel.
Buy Immediately
Short description:
Maximum shock absorption. Complete comfort. For all foot types best for high arches
Comfort: Pure Kingfoam comfort
Elite Sport: Kingfoam + Gel for high-impact and all temperature control
Elite Pro: Dual-density heel cup for ankle stability plus comfort layer
Built for everything from walking to elite action sports.
The FP Solution
✅ Absorbs 90% of shock
✅ Distributes pressure evenly
✅ Helps eliminate over pronation like a doctor’s orthotic
✅ 3d molds to your unique shape
Satisfaction Guaranteed
Other OTC insoles just fall flat
We’ve reengineered the process of making a custom insole and patented it. Then we made it better than anything you can get at a lab by incorporating our shock absorption technology and eliminated the two main cuases of soreness and injury, Shock energy and joint misalignement.
There is no other insole on the market like this.
Dr. recommended
✅ Heat-moldable comfort
✅ Relieves heel, arch & forefoot pressure
✅ Energy return for longer movement
✅ Fits skate shoes, runners & boots
Feel comfort that actually lasts.
More Miles—Pain Free
✅ 90% shock damping
✅ Centered heel lock for control
✅ Lightweight, no bulk
✅ All-day stability
Upgrade shoes—upgrade your body.
🧪 Test Methodology
The 5-joule impact test measures the peak force transmitted (in kilonewtons, kN) when an insole is subjected to a controlled impact.
Lower kN = Better shock absorption
Better shock absorption = Less foot fatigue & lower injury risk.
| Insole Model | Peak Force (kN) | Price |
|---|---|---|
| Dr. Scholl’s Gel Insoles | 12,000 | $18 |
| Z-Liner Insoles | 6,000 | $39 |
| FP Kingfoam Insoles (5mm) | 3,400 | $19.99 |
| FP Kingfoam Elite FluidX Insoles | 2,700 | $39.99 |
| FP Kingfoam Orthotics FluidX | 1,700 | $49.99 |
| FP Kingfoam Orthotics FluidX Hi | 2,000 | $60 |
Why FP Insoles Work for You:
Z-Liner Insoles: A step above basic gel insoles, but not the best value compared to modern technologies.
Dr. Scholl’s: Affordable, but weakest in shock absorption.
FP Insoles: Consistently deliver 2–4x more protection at competitive pricing, making them the leading choice for athletes, workers, and anyone seeking serious foot and joint protection.
Bottom Line: While Z-Liner offers moderate protection, FP Kingfoam series sets the gold standard in shock absorption, injury prevention, and long-term comfort.
What Real Customers Say on Trustpilot
“Amazing support & cushioning. Did a long hiking trek with no pain. Total game-changer.”
★★★★★
Date of experience: July 03, 2025
– Miguel Porter, US
“Perfect for sports! I’ve never had this level of foot support during training.”
★★★★★
Date of experience: July 06, 2025
– Evelyn Hall, US
“Tried many insoles — these are by far the best. Keep their shape, all-day support.”
★★★★★
Date of experience: July 02, 2025
– Caian Droven, US
“Real Athletes. Real Results. Real Proof.”
Jordan Wiens
Contractor
“One of the best things I’ve ever done for my feet, my knees and my back”
Stephen Patterson
Wild Training
“James sits down with long time best friend and insole expert Tom Smith to discuss Footprint insoles, who have developed a really unique product that dramatically improves your current training shoes ability to reduce impact on your body.”
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