NANO Goggles, perfect for naughty little ones. The glasses are made of Siliflex™ which makes them almost indestructible. Comfortable and extremely flexible, NANO glasses include an elasticated strap that makes it easy to adjust the frame to the child's face. NANO SOLAR CLIP are children's glasses with a solar clip and magnetic attachment. The magnetic sun clip offers top quality, polarised lenses with BLUE BLOCK protection against harmful UV rays and blue light.