Size Guide: Medium size fit Fans of old-school Revo, we heard you. Crawler is back and better than ever with an updated smooth, ultra-lightweight frame, and impact-resistant Serilium+ NASA-based polarized lens technology. Crawler will keep you protected and stylish while fishing, hiking, golfing, driving, or everyday wear. DETAILS Revo high-contrast polarized Serilium+ lenses Lightweight, impact-resistant, glare-reducing nylon Measurements 59-17-133 Lens Height 39 mm 6-base lens technology A flatter profile, temple to temple Elastomeric nose pads and temple tips Slip-reducing rubber provides a more secure fit Integrated spring hinge Flexible temple for a comfortable, secure fit Revo Light Management System™ Filters harmful UV, HEV, and Blue Light Digital Device-friendly Reduces glare and enhances clarity of digital screens SIMILAR STYLES Similar style in larger fit: Crawler XL