A sleek long sleeve pullover sweater by Arc'teryx Veilance made from MAPP merino wool - a breathable, temperature regulating fabric. - MAPP merino: 61% wool, 39% nylon - MAPP superfine merino jersey: 100% merino wool - Nylon face fabric with merino wool interior for added next-to-skin comfort - Lightweight pure merino jersey at underarms, sides and hem panels - Gusseted underarms - Made in Canada