For herder Bayarduuren Zunduikhuu, it is also one of the busiest. “We wake up as the sun rises,” she says. “Spring is all about the cashmere harvest.” Like many members of Mongolia’s estimated 300,000 ...

Choosing between wool and cashmere is one of the most common dilemmas when buying sweaters. Both materials have long histories in knitwear, both are associated with warmth and comfort, and both can ...