The Nike Space Hippie 01 'Obsidian' is a part of a sustainable collection aimed at reducing the brand's carbon footprint. This sneaker features a navy blue knit upper that is crafted using 'Space Waste Yarn,' a material that incorporates recycled elements such as fabric scraps, T-shirts, and plastic water bottles. The shoe also boasts a comfortable, sock-like construction that sits atop a cream-colored Crater Foam midsole. This midsole is designed to work harmoniously with a plush sockliner made from ZoomX foam scraps, which is the same cushioning technology utilized in Nike's top-tier NEXT% running shoes.