The F1 is a frameless mask available in many colors. The lens is integrated directly into the silicone without a distracting frame, and like almost all frameless masks, it can be folded flat for transport, which is very convenient. It is made from high-quality, very soft, and comfortable liquid silicone. The low internal volume allows for easy clearing, and the highly adjustable strap buckles are flexibly integrated into the silicone body. It is a single-lens mask with a very large field of vision.