Boohoo was founded in the U.K. in 2006 and has historically released up to 300 new products a day — now that’s fast fashion. Boohoo sales were up 33% from 2017, coming in at a whopping £374 million in annual revenue last year. The trend-obsessed retailer understands customer behavior and knows how to convert its shoppers’ data into a personalization strategy that captures the undivided attention of its target demographic — Gen Z. Part of that strategy involves promoting shoppers to share the Boohoo love by referring their besties through email and on social to receive deep savings on their first order. The retailer’s strong cross-channel approach to retail includes ‘we think you’ll love’ product recommendations in abandoned cart emails and Boohoo keeps things casual, keeping loyalists on a first-name basis in push and email communications.