The X1s offers the style and premium performance that Dragon has become renowned for. The twin-lens package covers you for all conditions you’re likely to encounter on the hill.Lens: Lumalens Pink Ionized + Dark SmokeVLT: 54% (CAT 1) + 23% (CAT 2)Size: MediumLens Shape: SphericalMain LensLUMALENS Pink Ionized – With a 54% VLT this lens is at its optimum in snowy and heavily overcast conditions. The lens has a hydrophobic hard coating to repel water and give added protection. An Ionized finish is used which makes colours richer whilst reducing glare.Bonus LensLUMALENS Dark Smoke – With a 23% VLT this lens is suited for bright light, sunny conditions. The lens has a hydrophobic hard coating to repel water and give added protection.Visual Light Transmission, VLT, refers to the amount of light that penetrates a lens. A low percentage means less light passes through and a higher percentage lets an increased amount of light through. A lens with a lower VLT rating is better for bright conditions, where as one with a higher VLT is more suited for overcast and snowy days.