Breathable lightweight merino jersey for grimpeursnesting on the border between france and italy you will find the highest paved road in the alps col de la bonette at 2715 metres it towers majestically in front of you in the mercantour national park the climb has with its distance of 24 1 km and an average grade of 6 6 upwards to 9 been included in the tour de france many times and is a personal favourite of isadore founder and pro rider peter velits its brutal difficulty has inspired