Skram Eyewear offers riders stylish, shatterproof sunglasses with 100% UV Protection. Transitional Ones feature a hand-polished Premium Cellulose Acetate frame, boasting comfort, durability, hypoallergenicity and heat resistance. Transitional Ones start with Clear or Yellow category 0 lenses when inactive, but transition to Smoke category 3 sunglasses when exposed to UV light. Enjoy eyewear that allows you to ride from day to night and everywhere in-between.