Unique mechanical resistance Mechanical resistance is the ability of materials to resist external static forces, tending to modify the form and dimension, without undergoing breakages or permanent deformations. The mechanical resistance of materials following various forms of static pressure can be measured using specific compression, torsion, flexion, shear and traction tests.
The special composition of the raw material that determines the spring effect of xtra-ordinario combined with a structure designed for excellent performance in time, has been tested on field: mechanical resistance and durability tests prove that the xtra-ordinario mattress can preserve all of its characteristics of comfort and quality in time.
Tests performed on xtra-ordinario provide scientific proof of the level of hardness of the mattress, that is to say its resistance to squashing and the real ratio between load and deformation.