The M3001 Freedom Tri-Quest Mask features Freedom Technology with newly designed patented domed side windows and an expanded panoramic view through a 1-window lens. The Tri-Quest Mask has a reduced frame structure to reduce blind spots and a three-dimensional strap for an unprecedented fit. ScubaLab Testers Choice Winner The TUSA M3001 Freedom Tri-Quest mask was named Scuba Lab's Testers Choice in Scuba Diving's April 2018 issue.