Use: Running, MTB, cycling, outdoor User type: Small heads and juniors Size: L (Small format) Frame width: 134 mm Bridge width: 129 mm Lens height: 59.7 mm Temple length: 135 mm Lenses: Polycarbonate Smoke Technology: Hydro Lens Category: 3N Light transmission: 8 to 18% Curvature: Shield - Base 5.5 cylindrical Frame: Grilamid TR90 Technologies Hydro Lens: the polycarbonate lenses offer 100% UV protection, good impact resistance, and hydrophobic properties. Grilamid TR90: this lightweight and flexible material enhances the frame's comfort and durability in various conditions. Adjustments: the adjustable temples and nose pad allow for a customised fit. Discover our selection of running glasses to find the right model for your activity. Also discover our cycling glasses to complete your gear. FAQ Who are the Bliz Hero Small for? The Hero Small are designed for small heads and can also be suitable for juniors. In what conditions should the Smoke lenses be used? The category 3N Smoke lenses, with a light transmission of 8 to 18%, are suitable for bright light conditions.