The paper examines how omnichannel communication of sustainability of luxury fashion brands enhance consumer brand engagement. We propose a multiple case study of four Italian high-end fashion brands. The study advances the literature on sustainable luxury fashion and omnichannel communication and offers guidelines for managers to effectively communicate sustainability.

Some well-known luxury fashion brands log off social media or deliberately keep their accounts empty. The article investigates how consumers of high-end fashion brands react to this social media strategy through a series of experiments. This study provides managerial implications for social media strategy of luxury fashion brands.