The New Tribe Mask is a one window frameless mask with ultra-low volume and wide range of sight. We have chosen the Saint Gobain Diamant® Crystal Clear Lens giving the highest transparency, clear aesthetics, optical brilliance, and depth perception at any depth. The Tribe has a unique shape along with 100% pure silicone fitting most face shapes. This mask also features our unique new 3-D contoured mask strap that prevents folding or hair pulling.