The primary characteristic which distinguishes a suri from a huacaya is the phenotype of its fleece. The suri's fleece falls close to the body, moves freely, and gives the animal a lustrous, flat-sided appearance. The luster found in the suri's fleece is the primary indication of the animal's quality. In addition, the fiber should be fine, and have good handle (a more slippery handle than huacaya) with a well-nourished, almost greasy feel