Like the idea of doing good, simply by slipping on your sunnies? Well, you’ll love brands like Bird, whose sustainable sunglasses also support an excellent cause. For every pair sold, this B Corp donates a solar lamp to families in Zambia and Malawi. Or buy from Pala Eyewear and support vision aid programmes in low-income African countries. Once you’ve picked some new shades, keep them safe with this durable case made from upcycled inner tube. Pretty cool, eh?