The document discusses the trend of chunky "ugly dad sneakers" that began in the late 2010s. It traces the origin of the trend to Raf Simons' 2013 collaboration with Adidas reworking the Ozweego model. Normcore fashion in 2014-2015 further popularized the oversized sneaker look. By 2016, major streetwear influencers and brands like Nike were bringing back chunky sneaker styles, cementing it as a popular trend. In 2018, the ugly dad sneaker had fully entered the mainstream with affordable options appearing on stores like Zara, Skechers, Fila, and Acne Studios, suggesting it had grown from a niche trend to a widely adopted new aesthetic.