Nike 5538 Optical Frame combines a full-rim construction with a rectangular profile for everyday prescription wear. The frame pairs secure fit features with a sporty design for practical outdoor use. Key attributes: Black | Nero | Plastic | Durable full-rim construction | Compatible with prescription lenses | Spring hinge for flexible fit | Straight temples | Rectangular (square) frame shape | Full-rim design | Temple color accents available | Dimensions & fit: 49-17-135 | Total width 115 mm | One size (fits most) | Composition & care: Plastic | Wipe lenses with a microfiber cloth. Clean frame with a damp cloth and mild soap; avoid abrasive cleaners. Store in a protective case when not in use.