Sportful trek segafredo pro classic bib shortssportfuls trek segafredo pro classic bib shorts are a simplified version of the ltd model but have many of the key features they are made of technical fabrics to provide optimal muscle support flexibility and comfort optimum ventilation comfortablethese bib shorts feature ultra wide lie flat leg bands mesh bib straps for optimum ventilation and a radio pocket the flatlock stitching has been placed out of airflow for exceptional aerodynamics and