Everlane Women's The Tread-Bare Sneaker in Canvas / Lapis Blue / Classic Red Unisex Size Female 8 / Male 6. Its lightweight design is made from recycled cotton canvas with a 100% natural latex rubber outsole and recycled trims. The best part? It is our lowest carbon-impact sneaker ever—producing only 4.78 kg CO₂e per pair (that’s less than a single cheeseburger or a reuseable water bottle).Sustainable.