The Sledge sunglasses offer a wide field of vision with an extra-large, ultra-protective polycarbonate lens. The glasses also come with three lenses and a secure interchangeable lens system that allows you to quickly and easily switch lenses to adapt your coverage. The lenses included provide a wide spectrum of tints which are suitable for bright and low lighting environments. Keeping your vision clear, the lenses are integrated with vents which boosts airflow to prevent the lens from misting. The full-rim frame is made from Grilamid TR-90 which is incredibly lightweight and flexible, whilst also retaining a great level of strength and durability. Cushioning the fit and stabilising the glasses positioning, the nose pieces, ear pieces and brow bar are made from hydrophilic rubber which stands strong against sweat and moisture. The ear pieces are also adjustable to create an adjustable fit.