With an updated design, the Aspire has been refined to deliver better performance on the bike while retaining its urban style. A lightweight grilamid frame provides flexibility and durability. Staying true to POCs active heritage, the glasses feature hydrophilic rubber grips on the nose and temple to ensure a secure fit, even when wet. Featuring Clarity technology from optical industry leaders Carl Zeiss Vision Sunlens, the lenses control the color spectrum for enhanced contrast and color definition, so vision can stay sharp when riding road, MTB or in urban environments. Complete UV protection (UV400) Clarity technology Rubber nosepiece and temples stay grippy even when wet ASPIRE FRAME DIMENSIONS: Height: 58 mm Width: 147.25 mm Temple length (from hinge): 115 mm FRAME COLOUR: Uranium Black FINISH: Matt MATERIAL: Grilamid NOSE/EAR PIECE: Hydrophilic rubber LENS BASE COLOUR: Grey MIRROR COLOUR: None LIGHT CONDITION: Category 3: Full Sun TREATMENT: RiPel Anti-Dirt & -Water VISIBLE LIGHT TRANSMISSION: 15% MATERIAL: PC lens by Carl Zeiss VLT EXPLAINED Visible Light Transmission (VLT) describes the percentage of light in the environment that reaches your eye after passing through the lens. A lower number corresponds to a darker lens. Generally speaking, a higher VLT lens will suit lower light conditions, and a lower VLT lens will suit brighter, sunnier conditions.