Sold with two sets of lenses, each for different lighting conditions, and a removable strap that firmly secures the frame and lenses to your head and face, the XL-1 Advanced is described by fans as a hybrid between a goggle and a pair of sunglasses. Ballistic-rated for safety and equipped with a removable Facial Cavity Seal for blocking irritants and peripheral light, the XL-Advanced is a solid workhorse designed and purpose-built for maximum comfort and protection.