Why did zhao tell his people to dress in the trousers of mongolian cavalry?

Zhao advised his people to dress in the trousers of the Mongolian cavalry to enhance mobility and comfort during travel and combat. The Mongolian trousers were specifically designed for the rigors of horseback riding, which allowed for greater freedom of movement compared to traditional garments. This practical adaptation aimed to improve the effectiveness of his forces in battle and facilitate better coordination during military campaigns.