the constituent material of the outer sole shall be taken to be the material having the greatest surface area in contact with the ground, no account being taken of accessories or reinforcements such as spikes, bars, nails, protectors or similar attachments.
la matière constitutive de la semelle extérieure est déterminée par celle dont la surface au contact du sol est la plus grande, sans égard aux accessoires ou renforts, tels que pointes, barrettes, clous, protecteurs ou dispositifs analogues.