TUSA M28. Unique 2-window design offers exceptional visibility and low-volume comfort while incorporating our patented 3-D Strap and Round Edge skirt technologies. A newly designed skirt mounted Quick-Adjust Buckle System further enhances comfort and ease of fit. Additionally, the Geminus accepts MC7500 corrective lenses for an easy transition to a corrective lens mask. Simply, the Geminus leads where others will follow. Lightweight composite frame for enhanced grip and shock protection. Low profile, low volume 2-window design. Skirt mounted Quick-Adjust Buckle System. Patented round edge skirt for increased comfort and better seal. 3-D strap for ideal anatomical fit. Accepts ML-7500S AR/UV Lenses and MC-7500 Corrective Lenses.