The F1 is a frameless mask available in many colors. The glass is integrated directly into the silicone, without a distracting frame. 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 effortless 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.