Heel-Less Carbon Plate Running Shoe Sole for Forefoot Strikers

The problem

Runners land in three ways: heel first, flat-footed, or on the forefoot. According to the patent, most running shoes on the market are designed for heel and midfoot strikers, and the few designs for forefoot strikers use a simple sole that does little for performance. A forefoot striker still carries a full heel stack that hardly touches the ground on each stride - weight with no job.

The solution

The patent builds the sole around the forefoot landing:

1. An upper midsole (1) runs the full length of the foot - forefoot, arch and heel.
2. A lower midsole (3) and an outsole (4) cover only the forefoot and arch. Under the heel there is nothing, so the heel of the upper midsole floats above the ground.
3. A carbon plate (2) sits in a cavity between the two midsoles and runs from heel to toe.
4. The plate’s rear support section (21) lies against the underside of the floating heel and gives it bending stiffness, so the heel is supported without touching the ground.
5. At the front, an inner wing (24) under the big-toe side and an outer wing (26) under the little-toe side spread the plate where the forefoot lands and rolls into push-off.
6. A raised support region (22) in the arch puts the plate’s middle closer to the foot and its front closer to the ground.

Who it is for

• Running shoe brands and private-label footwear companies that want a distinct forefoot-strike model next to their heel-strike trainers - the floating heel is visible on the shelf and easy to explain.
• Track, trail and road racing specialists selling to experienced runners who already run on their forefoot and look for lighter racing shoes.
• Sports footwear importers looking for a carbon-plate design that is not a copy of the large US and European brands’ plates.
• Running clubs and coaching programs that order team shoes and teach forefoot technique.

How it works

The main parts

A stride, step by step

1. Landing - according to the patent, a forefoot striker usually touches down on the outer front of the foot first; the outer wing (26) takes that load and passes it quickly to the forefoot.
2. Roll-in - as the foot rotates slightly inward, the inner wing (24) supports the big-toe side.
3. Push-off - the plate bends and springs back under the forefoot; the patent says this improves push-off efficiency.
4. Heel - the floating heel, stiffened by the support section (21), gives the heel a resting surface without a ground-contact wedge.

Materials named in the patent

The patent describes the upper midsole as a light, soft, springy foam (it gives a hardness around Asker C 42) that can be made by supercritical or chemical foaming from materials such as nylon elastomers, TPU or EVA blends. Final foams and plate layups are chosen in development.

Applications

Forefoot racing shoes

A light road racer for runners who already land on the forefoot; the missing heel stack saves weight where it does nothing for them.

Track and tempo trainers

Faster sessions are run more on the forefoot; a plated, heel-less trainer suits interval and tempo days.

Running-technique and transition products

Brands that teach forefoot running can sell the shoe as part of a technique program, with clear guidance on gradual adaptation.

Sprint-inspired lifestyle sneakers

The floating heel is a strong visual feature; a softer, plate-free version can be developed as a fashion sneaker.

Team and club orders

Clubs coaching forefoot technique can order a team model with club colors on the upper.

Where it is less suitable

• Heel strikers and beginners - runners who land on the heel would land on an unsupported heel; the shoe must be marketed clearly for forefoot runners.
• Walking and all-day wear - walking is a heel-first motion, so this sole is not a walking shoe.
• Rough trails - a floating heel can catch on rocks and roots on technical terrain.