Brand New D.O.T. Approved New Youth Sizing; SM, MD, LG and XL Advanced Polycarbonate Composite Shell: Revolutionary design with que visor. Lightweight, superior fit & comfort using advanced CAD technology. Advanced Ventilation System: Full front to back airflow flushes heat and humidity up and out. Nylex Interior: Removable and washable. All sizes of cheek pads are interchangeable within all sizes Large Eye Port and maximum range adjustable visor: For maximum visibility and superior goggle fit.