Oakley Holbrook Rx Frame pairs a geometric, square silhouette with prescription-ready functionality. Ideal for everyday wear, it offers a classic profile suited to multiple face shapes. Key attributes: Gray | Propionate | Prescription-ready | Lightweight construction | Compatible with prescription lenses | Demo/trial lenses supplied (replaceable) | Geometric/square frame | Classic Holbrook silhouette | Dimensions & fit: Sizes: 54, 56 (lens width in mm) | Dimensions: 54-18-137; 56-18-137 | Bridge: 18 mm | Temple: 137 mm | Lens height: 42.0 mm (size 54); 43.0 mm (size 56) | Standard fit | Recommended for round, oval and heart face shapes | Composition & care: Propionate frame | Plastic demo lenses | Wipe lenses with a microfiber cloth. Clean frame with mild soap and water and dry thoroughly. Store in the supplied case when not in use.