With a comfortable and lightweight fit from its soft skirt, the Hammerhead MV4 Mask has a near-custom fit and an all around field of view at depth. The Hammerhead MV4 has a higher field of volume and vision than the ultra low volume Hammerhead MV Mask, but a lower volume and field of vision than the MV6. The MV4 Mask provides a leak-free fit for a wide range of divers and comes with effective push-buttom buckles and an ultra-narrow strap that incorporates a stretchy split headband.