Koolsun is a Dutch sunglasses brand for kids. All sunglasses have lightweight flexible frames that bend.  Get ready for the sunshine with these beautifully designed Wayfarer style sunglasses.  They look great, and will last years as they are both durable and fully flexible. The frame and the temples are made of the high-quality TPE plastic and therefore very flexible and almost unbreakable, even if someone accidentally sits on it. The unbreakable polycarbonate lenses are optical class 1 and cat. 3 and protect your child's eyes from harmful UV-A and UV-B sun rays. You can store them in their KOOL accompanying microfiber imprinted pouch, when not in use. Generously sized so size down if in doubt 1-5 years: lens width: 41 mm | lens height: 33 mm | nose bridge: 20 mm | frame width: 110 mm | temple length: 110 mm 3-10 years: lens width: 46 mm | lens height: 37 mm | nose bridge: 22 mm | frame width: 120 mm | temple length: 120 mm UV 400 protection cat. 3 impact resistance microfiber bag lightweight strong + flexible