A slightly more affordable chunky shoe design than Italian label Balenciaga's Triple S sneaker is N°21's rendition of a classic 80s running silhouette. Featuring a similar retro exterior, the model is constructed with an upper that is a mix of canvas and calf leather. The style, which is dubbed 'Billy,' is made in Italy and is currently available in two monochromatic exteriors. While the black gives off a rather elegantly sleek look, the white variant is more sporty and somewhat reminiscent of 80s tennis kicks.
The chunky shoes have a textured running sole that adds to the aesthetic quite a bit. Highsnobiety identifies N°21's chunky shoe offering as being perfect for adding visual interest, but not overwhelming the outfit by making the tonal Billy's "the [...] focal point" of the ensemble.