The NFX2 is consistently one of the most popular goggles amongst staff and Dragon team riders alike thanks to its clean, simple design and cylindrical lens. The twin-lens package covers you for all conditions youre likely to encounter on the hill.Lens: Lumalens Dark Smoke + Lumalens VioletVLT: 23% (CAT 2) + 62% (CAT 1)Size: MediumLens Shape: CylindricalMain LensLUMALeNS Dark Smoke With a 23% VLT this lens is suited to very bright light, sunny conditions. The lens has a hydrophobic hard coating to repel water and give added protection.Bonus LensLUMALeNS Violet With a 62% VLT this lens is at its optimum in snowy, heavily overcast, and darker 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.