Touker Suleyman joined Dragons' Den in 2015 and is known for his ownership of Hawes & Curtis.
Suleyman became a Dragon in the programme's thirteenth series, adding a background in fashion, manufacturing and retail to the investor panel. He is associated with Hawes & Curtis, the British shirtmaker, and with the fashion brand Ghost, which he acquired and developed.
His business career began in textiles and manufacturing, where he built experience in sourcing, production and consumer brands. Those areas shaped the questions he asked entrepreneurs about costs, supply chains, stock, margins and the practical difficulty of scaling a product.
The year 2015 is useful for distinguishing Suleyman from other later Dragons. Nick Jenkins joined around the same period, while earlier investors such as James Caan had already left. Hawes & Curtis is also sometimes described only as a shirt retailer; its association with Suleyman is the relevant identifying clue in this question.