These photochromic glasses of the John Doe Speedking sunglasses go within seconds from clear to tinted and vice-versa; depending on the exposure to the UV-light; therefore offering perfect visibility in every situation. The removable foam insert protects from any turbulence and winds. Features:Self-tinting lensesRemovable foam paddingExcellent comfort thanks to the durable frame construction100% polycarbonate frame100% polycarbonate lensesErgonomically designed frameUV-protection
