Nugget Persistence B glasses black + lens 2019/20 women's Technical specifications: - Comfortable double glass type “REVO” - 100% UV protection - Anti-fog anti-fog treatment - Anti-scratch anti-scratch treatment - Triple soft foam with fine fleece material for better sweat wicking and greater comfort - Simple glass exchange system by snapping into the spectacle frame - Ventilation holes - Silicone layer on the strap for better grip on the helmet - Space for