The sturdy Edge mask has incorporated buckles on its frame and a soft silicone skirt for extra comfort. Fits a range of face shapes. Streamlined bi-material frame. Soft areas for enhanced grip when fitting the mask. Sturdy, durable construction. Integrated buckles on frame. Extremely comfortable silicone skirt suited to a variety of face shapes. Available in a variety of colors, such as clear/blue, clear/yellow, and black/gray.