The sole of Diadora’s Vortex Pro has eleven cut-outs to aid airflow, perfect for long summer rides by Paul Horta-Hopkins · 30/01/2015 The sole of Diadora’s Vortex Pro has eleven cut-outs to aid airflow, perfect for long summer rides Share this:FacebookTwitterWhatsAppPinterestTumblrLinkedInPocketEmailRedditLike this:Like Loading...