CURREX RunPro vs SOLE Active: Which Insole Wins? | DPM

In This Article

• CURREX RunPro: Arch-Specific Design Explained
• SOLE Active: Heat-Moldable Technology Explained
• Head-to-Head Comparison
• Which Insole by Foot Condition
• CURREX RunPro vs PowerStep Pinnacle
• The Most Common Mistake
• FAQ
• The Bottom Line

CURREX RunPro: Arch-Specific Design Explained

CURREX RunPro is designed with a principle we appreciate clinically: it acknowledges that not every foot has the same arch height, and a standardized insole profile will fit some arches well and others poorly. CURREX RunPro comes in three arch profiles — low, medium, and high — allowing runners to select the insole whose arch contour most closely matches their natural arch geometry. The polypropylene shell provides semi-rigid support that resists pronation during the midstance phase without the full rigidity of a custom orthotic. The top cover foam provides cushioning at the heel and forefoot while allowing the arch shell to do its mechanical work. For runners who’ve tried other OTC insoles and found them either too flat (insufficient support) or too high (uncomfortable arch contact), CURREX’s arch-specific sizing often resolves the fit problem that standardized insoles create.

SOLE Active: Heat-Moldable Technology Explained

SOLE Active uses thermoplastic moldable material that becomes pliable when heated in an oven (approximately 2-3 minutes at 200°F), then conforms to the individual foot contour when stood upon during cooling. The concept is appealing — a semi-custom fit at OTC price — and for patients with unusual arch shapes or asymmetric feet (one arch different from the other), heat molding can provide a more accurate fit than any standardized insole. The cork-based top cover provides firm, supportive cushioning with good moisture management for boot and multi-sport applications. SOLE Active’s durability is excellent — the cork and moldable base maintain their shape for 12-24 months, making them cost-effective for daily-use applications. The limitation is that the heat molding, while beneficial, doesn’t capture the same biomechanical precision as a clinical casting by a DPM — the foot’s weight distribution during the molding process isn’t controlled the way it is during custom orthotic fabrication.

Head-to-Head Comparison

• Arch support precision: CURREX RunPro — three arch profiles allow better matching to individual arch height. SOLE’s heat molding provides custom contouring but without clinical control of foot position during molding.
• Cushioning: SOLE Active — the cork top cover provides more forefoot cushioning than CURREX’s thinner foam. Better for higher-impact activities and patients who prioritize comfort alongside support.
• Running applications: CURREX RunPro — thinner profile fits better in running shoes, arch-specific profile more relevant for running gait mechanics, lighter weight.
• Hiking and work boots: SOLE Active — cork durability, moisture management, and heat-molded fit make it the better choice for extended boot wear and multi-day applications.
• Durability: SOLE Active — cork base outlasts CURREX’s foam components in continuous daily use.
• Price: Both are in the $45-60 range. CURREX RunPro slightly higher; SOLE Active slightly lower.
• Flat feet / overpronation: Both provide semi-rigid support; CURREX’s “low” arch profile more specifically addresses the flat arch presentation.
• Plantar fasciitis: Both offer meaningful support, but neither provides as deep a heel cup as PowerStep Pinnacle for PF management.

Which Insole by Foot Condition

• Plantar fasciitis: PowerStep Pinnacle remains first choice. CURREX RunPro (low or medium arch) is a reasonable alternative for runners who find PowerStep too stiff. SOLE Active provides adequate cushion but less targeted heel cup depth for PF.
• Flat feet / overpronation: CURREX RunPro Low or PowerStep Pinnacle. The CURREX low profile specifically addresses the flat-arch geometry. SOLE Active heat-molded can also work if the molding captures the arch position appropriately.
• High arches: CURREX RunPro High or Superfeet Green. The high-arch CURREX profile fills the arch void that standard insoles leave. SOLE Active molded to a high arch provides good contact but less structural support than the semi-rigid CURREX shell.
• Achilles tendinopathy: Either — focus on adding a 3-4mm temporary heel lift to whichever insole is used during active Achilles phases, rather than relying on the insole’s built-in elevation.
• Running > 30 miles/week: CURREX RunPro — designed and durability-tested specifically for high-mileage running. SOLE Active is not specifically designed for running biomechanics.
• Hiking / work boots: SOLE Active — cork durability and heat-molded fit provide the best multi-day boot performance.

CURREX RunPro vs PowerStep Pinnacle

Since PowerStep Pinnacle is our standard clinical recommendation, runners often ask how CURREX RunPro compares directly. The key differences: PowerStep Pinnacle provides a deeper heel cup — better for plantar fasciitis management where reducing heel movement is clinically important. CURREX RunPro provides more arch profile specificity — better for runners who’ve tried PowerStep and found the arch either too low (insufficient support) or too high (uncomfortable). PowerStep is available in a wider range of shoe-specific variants (Slim Tech, Wide, Maxx). CURREX RunPro is thinner and lighter — relevant for runners who find PowerStep Pinnacle adds too much insole volume to their shoe. In our practice, PowerStep remains first recommendation; CURREX is specifically recommended when PowerStep’s arch height doesn’t match the patient’s arch geometry, or when the patient is a high-mileage runner who prefers a lighter insole.

The Most Common Mistake

The most common mistake with CURREX RunPro is choosing the arch profile based on appearance or assumption rather than a quick arch height measurement. Many patients assume they have a “medium” arch when their gait analysis shows either true flat feet (low profile is correct) or a moderate cavus presentation (high profile is appropriate). CURREX’s website provides a simple wet-foot test to identify arch height, and matching the profile to the test result significantly improves outcomes. The most common mistake with SOLE Active is performing the heat-molding incorrectly — standing too briefly, not distributing weight evenly, or allowing the insole to cool before full foot contact captures an inaccurate arch shape and reduces the clinical benefit of the customization process.

In-Office Treatment at Balance Foot & Ankle

If home treatment isn’t providing relief for your foot pain requiring orthotics, our podiatry team at Balance Foot & Ankle can help with same-day evaluations and advanced in-office care.

Frequently Asked Questions

Are CURREX insoles worth it?

CURREX insoles are worth it for runners who’ve tried standardized OTC insoles and found the arch height or profile doesn’t match their foot — the arch-specific sizing solves a real clinical problem. For patients with neutral arches who simply need cushion, standard running shoe insoles or PowerStep provide adequate support at the same or lower cost. The value proposition of CURREX is specifically its arch-profile matching; if you’ve found other insoles too flat or too high, CURREX’s three profiles are worth the slightly higher price. For runners logging 25+ miles per week who want better mechanical precision than Superfeet or PowerStep, CURREX RunPro is a clinically reasonable choice.

How long do SOLE Active insoles last?

SOLE Active insoles typically last 12-18 months with daily use — the cork base is durable and resists compression better than foam-only constructions. The top cover fabric wears faster than the base in high-friction applications (running, climbing). For hiking boot use, which is their optimal application, SOLE Active insoles have been used reliably for 24+ months by users who report good arch support retention. If the arch support feels diminished before the top cover shows significant wear, the heat molding has potentially relaxed and re-molding may restore some support — remove, reheat, and remold per the original instructions.

The Bottom Line

CURREX RunPro and SOLE Active are both quality insoles that outperform generic drug-store alternatives — the choice between them comes down to application. Running → CURREX RunPro with the appropriate arch profile. Hiking, work boots, multi-sport → SOLE Active for durability and heat-molded fit. Plantar fasciitis → PowerStep Pinnacle remains the clinical standard, with CURREX as an alternative when arch-height matching is the priority. If you’ve tried multiple OTC insoles without success, a podiatric evaluation can identify the specific biomechanical issue that OTC products aren’t addressing — and guide whether a better OTC match or custom orthotics is the appropriate next step.

Sources

1. Rasenberg N, et al. “Insole-based devices for the treatment of plantar fasciitis.” Br J Gen Pract. 2018;68(676):e784-e790.
2. Mills K, et al. “Foot orthoses and calf stretching for plantar heel pain.” BMC Musculoskelet Disord. 2010;11:15.
3. Murley GS, et al. “Foot orthoses and lower limb biomechanics.” Clin Biomech. 2009;24(6):483-492.