Kafo sunglasses - These eco-friendly retro sunglasses are the perfect promotional gift for summer festivals, parties or other outdoor activities. The frames are made of a mixture of plastic and coffee fibers, which reduces the use of virgin plastics. The lightweight and comfortable earpieces are also made of coffee fibers from sustainable, environmentally friendly and socially responsible sources. The glasses meet the EN ISO 12312-1 standard and have lenses with a UV400 category 3 filter, which makes them an ideal choice for protection against bright sunlight.