Ideal for mountain biking and running, the light, durable and incredibly aerodynamic Julbo Dirt sunglasses satisfies all needs at high speed.This product will be shipped directly from Julbo and will leave their warehouse in 2 3 business days. Eligible for UPS ground shipping only. Zebra photochromatic lens adjusts from category 2 to category 4 protection depending on sunlight intensity. 100% UV protection, A, B, and C. Anti mist treatment prevents condensation and maximizes lens lifetime. Wrap around shape for good visions spectrum and protection. Grip nose, with a supple shock absorbent insert. Curved wrapping temples for better hold with high impact activity. Supple, sculpted inserts at the stems end for excellent hold without sticking to hair.