Black Sustainable Leggings. Nothing says relaxed comfort than a good pair of ladies leggings. If you crave comfort in an eco-friendly way then check out these black ladies leggings from Lone Wolf. These affordable high waisted black leggings Squat Proof offer 4 way stretch and UV Protection. Made from recycled fabric they offer perfect balance of compression and stretch giving you that flattering high-waisted fit. A great way to look and stay fashion fit in a sustainable eco-friendly manner. A mist have for all you sustainably fashion conscious ladies out there.