With a cast-like construction, the adidas Yeezy Knit RNR Boot Sulfur features a woven upper with a two-way velcro enclosure. The base of the Knit RNR Boot mimics the original Knit RNR Sulfur, a low-top slip-on Yeezy that debuted earlier in the fall of 2021. From there, a sculptural sole with accentuated treads completes the design. The adidas Yeezy Knit RNR Boot Sulfur released in November of 2021 and retailed for $400. The futuristic silhouette features a calf-length canvas collar lined in a waterproof membrane and 150 grams of Thinsulate insulation for added warmth. Velcro closure allows for easy on and off. The minimalist upper is constructed from a single piece of knit textile, finished in a deep yellow hue and shored up with a reinforced PU toe. A matching yellow finish is executed on a textured EVA midsole, supported underfoot by a high-traction rubber outsole.