In Amsterdam, a Mostly Vegan, All Cashmere Feast

At 1 o’clock every weekday, a cowbell rings inside the Extreme Cashmere headquarters in Amsterdam, calling the company’s 20 employees to lunch. A communal meal has been a ritual for Saskia Dijkstra since she founded the knitwear brand in 2016, after 20 years spent sourcing cashmere for luxury …