The idea sunglasses for playing sport or generally being active - these are super-strong yet flexible.  We love this cool, funky colourway and we know kids will too! KOOLSUN SPORT sunglasses for kids have unbreakable polycarbonate Silver Revo mirror lens with optical class 1 and cat. 3 certification. They provide 100% UVA and UVB protection. With this pair, you also get the KOOL microfiber pouch, which you can use for safe-keeping.