Angorra wool
Angora is a high-quality wool is derived from the Angora rabbit and is considered an excellent fiber for making overcoats as it keeps you insulated in colder weather. Angora is a significantly cheaper alternative to cashmere yet feels very similar to it. Angora wool is especially known for its soft thin fibers and silky texture. It is lighter than wool but can keep you three times warmer than normal wool. It is an ideal option for thermal clothing.