The Mares X-Free is a great freediving or spearfishing mask.
Scuba diving Masks
Freediving masks
MASKS
Freediving & Spearfishing Snorkels – House of Scuba
Freediving masks
X-Tream spearfishing and freediving mask
Mares X-Free Mask - Lime/Black : Sports & Outdoors
Mares X-Free Mask - Lime/Black : Sports & Outdoors
Mares X Free Apnea Mask Black
Mares Chroma Up Mask - Blue/White/Clear