The YEEZY BOOST 350 V2 MX Dark Salt features an upper composed of re-engineered primeknit. The midsole utilizes adidas innovative BOOST technology. The YEEZY BOOST 350 V2 MX Dark Salt is made with a series of recycled materials, and at least 50% of the upper features recycled content, this product represents just one of our solutions to help end plastic waste.