The ZeroSole Reliever is a customisable pressure-relief insole designed by UK podiatrists for the targeted offloading of corns, callus and other pressure-related plantar foot conditions. Its patented hexagonal silicone cell grid lets the clinician or user remove individual cells by hand directly beneath a painful area, creating a personalised offloading zone in minutes.
Unlike gel or foam insoles that give uniform cushioning, ZeroSole combines full-length cushioning with focused pressure relief exactly where it is needed. It does this in a slim, low-profile insole that fits conventional enclosed footwear such as trainers, work shoes and boots, without the bulk of traditional modular systems or the need for post-operative shoes.
The insole is ready to use straight from the box, making it ideal for chairside fitting: patients can leave the appointment with immediate pressure relief, including as an interim solution while custom foot orthoses are being designed and manufactured.
Key Features
Targeted customisation: remove any hexagonal cell by hand to create bespoke offloading under one or more pain points
Evidence-led: laboratory pressure mapping (UWTSD) showed an average 28% reduction in pressure at targeted areas compared with standard footwear; a 6-week clinical evaluation (Cardiff Metropolitan University) showed statistically significant pain reduction and decreases in plantar lesion size
Chairside fitting: customised in minutes without grinding equipment, adhesives or additional workshop time
Bridge to custom orthoses: provides immediate offloading before custom insole fitting, and helps identify the offloading pattern a patient responds to
Low profile: approximately 5.5mm at the forefoot for everyday enclosed footwear
Durable: medical-grade silicone retains its shape for 6 to 8 months of daily use, outlasting compressible felt and foam padding
Arch support and heel cup: help redistribute load across the foot
Developed by podiatrists: created by UK podiatrists David Barton and Heather Smart, and used across the NHS and UK retail pharmacy
Technical Characteristics
Brand: ZeroSole by Kaydiar Medical
Model: ZeroSole Reliever
Materials: silicone cells, memory foam mid-layer, poly-suede (moleskin) top cover
Forefoot thickness: approx. 5.5mm
Heel height (external): approx. 20mm
Customisation: removable hexagonal cells
Fitting: trim-to-size guides for UK, EU and US shoe sizes
Footwear: conventional enclosed shoes, trainers and boots
Usage life: 6 to 8 months of daily wear
Supplied as: one pair per box
Typical Applications in Prosthetics & Orthotics
Plantar corns and callus
Metatarsalgia and forefoot pain
Plantar heel pain and plantar fasciitis
Pressure-induced foot pain from worn or ill-fitting footwear
Chairside interim offloading before custom foot orthoses are fitted
Trialling offloading positions to inform custom insole prescriptions
Long-term daily management and prevention of recurring lesions
Typical Users
Podiatry and chiropody clinics
Orthotic and pedorthic clinics
Foot health practitioners and diabetic foot teams (under clinical guidance)
Hospital outpatient and community foot care services
Pharmacies and retailers offering over-the-counter foot care
What's in the Kit
1 pair of ZeroSole Reliever insoles
Adhesive pressure-point markers for transferring the lesion position
Instructions for use
Sizes
Small-Medium: UK 4-7
Medium-Large: UK 8-11
How to Fit
Trim to size using the integrated guide
Apply the marker to the pain point on the foot
Step onto the insole to transfer the mark to the cells beneath
Remove the marked cells by hand from the underside
Insert into the shoe and wear
People with diabetic peripheral neuropathy or peripheral vascular disease should use ZeroSole under the guidance of a podiatrist or other healthcare professional.
The ZeroSole Reliever gives clinicians a fast, evidence-led way to offload painful plantar lesions at the chair, in everyday shoes, and to bridge patients to custom orthoses with immediate relief.
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