Skateboarding Insoles · Impact Science

Debunking Remind Insoles’ Advertising Claims: What Skateboarders Need to Know

If you are searching for Remind Insoles, FP Insoles, or the best skateboarding insoles, you’ve probably seen videos and ads claiming Remind insoles absorb “90%+ of impact” and outperform FP. As the inventor of FP’s impact technologies, here’s what those claims actually mean — and whether they reflect real-world skateboarding.

01

Why Remind’s “90% Impact” Claim Fails in Skateboarding

Remind advertises that its insoles absorb more than 90% of impact, referencing standard ASTM footwear testing.  The problem: that test was historically developed to evaluate running heel-strike cushioning — not repeated high-energy skateboard landings.

Walking, jogging, and running create dramatically different impact conditions than high-impact action sports:

The Real Question: If a company markets primarily to skateboarders, the relevant question is not “How does it perform while walking?” but rather, “How does it perform after hundreds of skateboard impacts inside a hot shoe?”

02

ASTM Footwear Testing vs. Real-World Skate Shoe Temperatures

Standard footwear cushioning tests run under controlled, room-temperature lab conditions. That makes sense for traditional shoe foam — but skateboarders don’t use insoles on a lab bench.

Skateboarders use them:

The inside of a skate shoe acts like an insulated chamber. Every step, push, ollie, and landing generates additional heat. Unlike motorcycle armor or helmet liners exposed directly to outside air, insoles trap heat inside the shoe, causing temperatures to rise continuously during use.

03

The Science: Remind Insoles Lost ~30% Impact Protection When Heated

To evaluate real-world performance, FP conducted controlled instrumented testing using a 5 kg impactor at 50 joules of impact energy — representative of actual skateboarding and snowboarding landings.

At ~30°C

23,000 N

Transmitted force

At ~40°C

34,000 N

Transmitted force

↓ Approximately a 30% reduction in impact protection simply from operating at temperatures inside real footwear.

The same insole that performs well on a cold lab bench performs dramatically differently once it warms up inside your skate shoe.

04

Temperature-Sensitive Material Hardness (Shore C Testing)

We also measured the hardness of the tested Remind material using Shore C testing across different temperatures:

Temperature Condition Material Hardness (Shore C) Impact Protection Level
Cold 50 Shore C Higher Protection
Room Temperature 30 Shore C Moderate Protection
Body Temperature 20 Shore C Significantly Reduced

As the material hardness decreased with heat, the transmitted impact force increased. This is a known behavior of temperature-sensitive viscoelastic foams. Inside footwear, these changes become critical because:

05

Misleading Comparative Advertising & Consumer Confusion

Beginning in approximately 2022, FP notified Remind and its legal counsel that we believed their comparative advertising was misleading. We provided independent SGS laboratory testing alongside our own instrumented testing data.

Despite receiving this information, Remind has continued to:

This has resulted in widespread consumer confusion, leading skateboarders to believe Remind has “proven” FP products are inferior — despite independent scientific tests showing otherwise.

Why This Matters to Skateboarders

Choosing a skateboarding insole is about serious impact protection, not just comfort. If you are buying a product believing it protects you from 90% of impact, you deserve to know:

What testing supports that claim?
Does that testing reflect actual skateboarding impacts?
Does the performance hold up once the shoe warms up?

At FP, we believe skateboarders deserve transparent, scientifically supported comparisons using equivalent products and testing conditions representative of real skateboarding. Accurate testing protects skateboarders, and the truth matters.