Black/silver-tone UltraBoost sandal sneakers from adidas by Stella McCartney featuring Primeknit construction, cut-out detailing, logo patch at the tongue, front lace-up fastening, signature cushioned Boost midsole and Continental™ rubber outsole. POSITIVELY CONSCIOUS: We've partnered with Good On You — an ethical agency that rates how sustainably brands perform across various people, planet and animal welfare criteria. This product comes from a Conscious brand that performs well in relation to their impact on animals..