During construction of the water filled sensory massage sole a number of specially developed materials has been used. The patented lamination provides the sole with excellent strength and stability which is necessary for the sensory massage.

The sole contains water as water is fast flowing, this being an absolute prerequisite for affecting the sensory massage and the hydraulic pressure equalization.

To further optimize the water movement the welding of the sole has been done by a special welding method that creates a hollow space between the two foils ensuring optimal water movement. Furthermore the sole is supplied with welding patterns on the sole surface that controls the water movement ensuring that the sole mainly builds up pressure equalizing water cushions under the heel and forefoot.

The underside of the sensory water filled massage sole is provided with a friction film that ensures that the sole stays put in the shoe.

The laminates that make up the sole must invariably follow the fast movement of the water under the huge dynamic hydraulic pressure and this movement causes wear and tear on the laminates. At a certain stage, the wear and tear does cause tiny holes in the laminates and water will evaporate.

When the soles heel surface is exposed to pressure load it will take time for the water to pass through the heel valve, which will increase the collision time. At the same time the pressure on the heel will raise the hydraulic pressure in the water that has yet to pass through the heel valve. The hydraulic pressure will distribute the pressure force from the heel to a larger surface of the heel cushion, making the collision area larger. The raise of the collision time and the collision area creates the shock-absorption in Medicovi D-40.

The heel valve slows down the water movement and in combination with the inserted flow-barriers a water cushion is created under the forefoot and especially under the ball of the forefoot. The water cushion prolongs the collision time, at the same time the counter pressure in the water cushion will expand the pressure surface up against the ball of the forefoot (Collision surface), creating powerful pressure relief to the ball of the forefoot.

When you stand it is the heel and forefoot that is exposed to the biggest pressure loads. That is why the heel valve and the inserted flow-barriers are constructed is such a way that they create a water cushion that is mainly concentrated under the heel and the ball of the forefoot.

Even when we are stand still every little movement of the body will change the pressure loads that the foot will transfer to the sole surface. In a regular shoe these many little body changes will not do anything significantly with the pressure loads under the heel cushion and the ball of the forefoot.

By placing the water filled sensory massage sole in the shoe the sole will create a hydraulic dynamical pressure cushion between the foot and shoe. The hydraulic pressure patterns in the sole will react to every single little change of the body's position and create/provoke new and different pressure patterns under the foot. Especially under the forefoot the constant change of carrying surfaces will reduce the time- and pressure loads on sore and painful areas.

It is the constant varying hydraulic pressure patterns in the sole that creates the sensory massage. Every time the body changes its position the pressure load form the foot against the sole will change, creating yet another new hydraulic pressure pattern in the sole. The new hydraulic pressure pattern in the sole will provoke/force the foot to change foot position more frequently. The body's balance system will respond to the new foot position by activating the calf and thigh muscles which will make the body change position.

As mentioned above the sensory massage will create a great balance uncertainty unless the system is restricted. If you stand in a waterbed where there is no water restriction is would be very difficult to keep your balance. Due to the double heel valve and the precisely measured water amount in the sensory water filled massage sole the movement of the water is regulated, making sure that the water movements under the foot feels stimulating and comfortable while at the same time keeping the sensory massaging effect.

Under the mesh surface a reinforced cotton material has been applied. This is treated with an anti fungicide 'Sanitized T 90-04' Moisture from the mesh surface is immediately absorbed by the cotton fabric ensuring that the mesh surface facing the sock is always dry, reducing any tendency to athlete's foot.

As the pictures show it's possible to achieve a comfortable pressure relief with the use of D-40. Besides the shown pressure relief there is the added pressure relief from the sensory water filled massage soles forced movement of the foot ensuring that the amount of time that a certain area of the foot is exposed to pressure loads is reduces. This has great significance when you are stand up which is the position where the biggest pressure loads to the skin layers of the sole of the foot occurs through pressure multiplied with time.