Gaerne avia spd sl road shoesthis new gaerne shoe is made with premium materials that give excellent qualities of comfort and good technical qualities features upper the upper is made entirely of soft microfiber with side mesh inlays both helping to enhance the light weight and breathability properties of the shoe closure system the closure system is made with three velcro straps comfort fit tongue the shoes tongue is perforated for better internal airflow and features a high tech cushioni