Expansive single-lens shield increases peripheral view and UV protection Megol rubber nose pads and temple arms for superior fit and comfort Enhanced space between lens and face increases airflow to preventfogging Temple arm scoops form a secure fit to your head and manage moisture Wrap-around design reduces movement on your face Lower air scoops increase ventilation while reducing moistrue on thelens Interchangeable replacement lenses and nose brides available for alllight conditions; sold separately CE and ANSI certified Designed with a shorter lens profile and more compact nose bridge With the exception of the lens air scoops, the SL model maintains thesame high-performance features