Santic Men's 4D Padded Bikes Shorts Loose Breathable Fitting High performance, high density breathable fabric Seat cushion with top 4D COOLMAX,riding transit can provide good protection,to avoid injuries caused by riding. Effectively reducing the sweat produced sour riding, eliminate infections caused by bacteria, make sure you health. Elastic waistband with outside drawstring Asian size about one size smaller than USA/UK size,Please order one size based on the Asian size chart.