Our technologies

The skin of the foot is both resistant and supple. To meet the foot's need for comfort in all situations, we have chosen materials that are as supple as the skin of the foot. The sole offers an ideal compromise between stability and comfort.

Foot stability is built around two main arches: the inner and outer. This enveloping architecture stabilises the heel and arches for precise guidance and a solid footing, structuring support during heavy loads (loads, lateral acceleration).

WARUJU is an expert in shock-absorbing materials. This technical part is designed to act from the first contact with the ground. It dissipates energy and allows progressive transmission to the front of the foot.

This technical resin insert connects the front and back of the foot. Its specific shape harmonises torsional forces and guides plantar structures. The mechanical response is instantaneous during lateral changes of support.

WARUJU develops patents to optimise the biomechanics of support and propulsion. Emmanuel Contal, co-founder, embodies the “Design-Expert” label. He draws on 30 years of movement analysis, which he validates on a daily basis with top-level sportsmen and women. This rigour requires the exclusive use of medical-grade technical materials. Manufactured in France, each model benefits from total mastery of assembly, for a high-precision product.

For certain disciplines, such as cycling or running, the weight of the equipment plays a key role. WARUJU uses low-density materials chosen for their lightness.

A high-resilience insert is placed under the thrust zone. It stores energy from the touchdown phase and releases it instantly on take-off. The material generates a spring effect that boosts propulsion.

Some footwear, because of its elegance or technical nature, offers little interior space. To reconcile finesse and efficiency, WARUJU uses its expertise in physiological cut-outs. This design provides real support for the foot in an ultra-thin size without altering the volume of your shoes or compressing your foot.

For certain activities, we choose materials whose thermal insulation capacity reduces discomfort (heat, cold).

Walking comfort depends on the quality of the natural “cushion” under the foot. To preserve this sensation of softness, WARUJU uses technical materials capable of reproducing the effect of plantar cushioning.

This ergonomic relief supports the metatarsal heads, reducing pressure. The foot regains its strength for efficient, fatigue-free propulsion.

Precision of movement comes from the toes. The “OVER-GRIP” concept positions an ergonomic relief under the phalanges to amplify feedback from the ground. This tactile stimulation improves the foot's responsiveness.

Each foot has its own unique relief. This technology uses self-moulding materials capable of gradually adapting to your morphology. Over time, the material accommodates the support zones to create a personalised footbed. The foot takes on its natural shape, gaining in stability and comfort.

The inward tilting of the foot is called pronation. Excessive pronation is responsible for many injuries. The «Prona-Stop Moderate» concept supports the foot by counteracting slightly excessive pronation. tilt. This concept protects the ankles, knees and back.

This biomechanical reinforcement acts as a dynamic support. Without ever blocking the foot's movements, this part reacts to pressure to keep it in its ideal trajectory.

ULTRA technology uses the properties of carbon for precise optimisation of endurance. It provides biomechanical guidance that maintains stability, even during intense effort. This structure respects the natural mobility of the foot while ensuring a safe stride.

Patented by Emmanuel Contal, this double resin shell is the structural heart of all WARUJU insoles. A true technological identity, it encourages a physiological approach to anticipate imbalances in the musculoskeletal system.

The roughness of some surfaces generates harmful vibrations (cycling, rollerblading, scooters, skates, etc.). The use of our high-filtering materials ensures super-fluid, comfortable sensations. The foot retains maximum perception and muscular reactivity.