Oakley HSTN SQ 2.0 Sunglasses combine a modern square silhouette with performance-oriented lens options for clear, contrast-rich vision in bright conditions. Key attributes: Gray | Grigio | Prizm lens options | Polarized lens variants available | Square frame | Full-rim silhouette | Dimensions & fit: Lens width 54 mm | Bridge width 21 mm | Large fit | Frame size 54-21 (lens width - bridge width)