Premium: exceptional quality or greater value than others of its kind. Merino: one of a breed of sheep valued for their fine wool. Premerino™: a lighter-weight, temperature-regulating, naturally stink-free ski sweater. Knit from 100% pure, Merino wool that is so soothingly soft, we can wear it against bare skin. By Krimson Klover exclusively for T9. XS(0-2), S(4-6), M(8-10), L(12), XL(14).