To gain peak performance you need to maximise every advantage. That's exactly what the hummel® HML FIRST PERFORMANCE TIGHT SHORTS provide with a zero-resistance, aerodynamic design, and inner leg/lower back inserts for maximum flexibility and ventilation.Product detailsMaxi-flex inserts for peak agilityZero-resistance design for optimal aerodynamicsBranded elastic waistbandQuality:88% polyester, 12% elastaneMachine wash at 40 degreesDo not bleachDo not tumble dryDo not ironDo not clean