These masks have a smaller internal volume, which makes it easier to equalize underwater, minimizing the amount of air needed to clear the mask as you descend. They also sit closer to the face, improving the field of vision and reducing drag, which is especially beneficial for freedivers and spearos who want minimal resistance while diving. Additionally, the snug fit of this low-volume mask often allows for better seal and comfort, reducing the likelihood of leaks and ensuring a more enjoyable dive experience. This mask is made with higher grade silicone skirts and tempered glass lenses for durability and comfort.