Persian Lamb is synonymous with Karakul, Krimmer, Astrakhan, and Broadtail. These names refer to different types of sheep breeds with unique wool that was once popular for its luxurious texture and warmth. Karakul is named after its breed from Central Asia, while Krimmer is a German term for the same breed. Astrakhan wool comes from a type of sheep found in Russia, and Broadtail wool comes from young lambs. While the term Persian Lamb is most commonly used in the fashion industry to describe fur, the use of animal products is becoming increasingly controversial, and alternative materials are now being used instead.