It is the mostly used animal fibre in the fashion world. Its physical aspects, its finesse and length, depend on the different types of sheep breeds, from their place of origin and the shearing period. Quality is defined mainly by parameters of length, fineness and curling: the finer and curlier the fibre, the more prestigious. Thanks to its particular structure, it has excellent characteristics like good hygroscopicity and breathability, supreme thermal insulation, elasticity, resistance to wear and tear and open flame. Wool is also mould-proof and an eco-sustainable fibre and is recyclable.