This ultra-low volume diving mask incorporates a unique, lightweight frameless design to provide an unprecedented field of vision. The extra deep and ultra-soft skirt provides a comfortable and flood resistant fit, which even works great with beards. Poseidon's LVSL technology gives you the best of both worlds with easy-to-clear low volume and a single lens in one frameless package. Designed for divers in need of a clear view of their heads-up display.