- Design: SMFK's 2024 all-in-one athletic slipper design is inspired by the fashionable sporty style of slippers. It features a classic one-piece slipper silhouette, combining the sole of a slipper with that of an outdoor footwear shoe. Utilizing SMFK's thick-soled athletic last, it has been adjusted to achieve a streamlined, athletic shoe shape with a sloping design. The front of the shoe features a cross-shaped embossed design, complementing the overall multi-layered silhouette and drawing inspiration from ancient carving art, with its reliefs and serrations.