Tusa Serene mask	One-window design Round edging of skirt for soft fitting Wide field of vision Three-dimensional strap for tight holding Five-position strap angle adjustor Wide range of colours including black silicone The 3D strap allows for fine fitting, as the back of a persons head is curved the new 3D design fits snugly against the occipital curvature with nonskid backing for superior fit and comfort. Both men and women are conscious about the creasing left on the face after removing a diving mask. The M-16 eliminates this problem with the special cross-sectionally shaped skirt fitting. This skirts design results in less pressure and majorly reduced creasing on the face. The M-16 is equiped with a wide field of vision flat mask design without frames between the eyes to capture the entire picture at all times. It is also compact in size and easy to transport. QTY: colours Cobalt Black Black Silicone Black frame Black Silver Black White Translucent