The Alpina Sports TWIST FIVE HR S VL+ are unisex sports sunglasses with self-tinting lenses. The self-tinting covers all three protection categories, S1-S3, that means from completely clear to dark. With the fogstop coating and an adjustable temple tip at the joints so you can customise the the nose piece width according to your head size for the most comfortable fit. Alpina Twist Five HR S VL+ are lightweight sunglasses that can be worn for sports as well as casually.