at the leg, with flexible loop to store a (waterproof) key safely.
reinforcement patches at many stressed points avoid a bursting of the seams.
e.g. in the foot or lower back area, allow water which had entered to leak out easily.
protect the shinbone against bruises and impact injuries caused by the board’s edge. Tatex protection protects (e.g. the knees) against tearing and abrasion from stones or rough nonslip coating.