Here's why:
* Double coat: Shih Tzus have a double coat, meaning they have a soft, dense undercoat and a long, flowing outer coat.
* Triple coat: A triple coat refers to dogs that have three distinct layers of fur: a soft undercoat, a dense middle coat, and a longer top coat. This is more common in breeds like the Bernese Mountain Dog or the Australian Shepherd.
While Shih Tzus have a luxurious double coat, they don't possess the additional layer of fur characteristic of a triple coat.