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A smartphone's short lifespan of two-to-three years already has a negative impact on our environment, and with every upgrade comes a new accessory — like a phone case or charging cord — that is generally bad for earth. One way to lessen our phone's carbon footprint (besides not upgrading it) is to pick up a sustainable phone case. Luckily today, there are quite a few eco-friendly phone cases made from sustainable material (like recycled plastic, bamboo, wood, plant-based "flaxstic," and more) that are on the market. So we took it upon ourselves to pick out the most stylish phone cases, just for you. From cases that support small artists to ones made from recycled plastic from our oceans, these are the best eco-friendly phone cases to buy for your iPhone.