Never worn NWT Women’s Medium, SmartWool Merino 250 Crew About SmartWool Merino 250 Pattern Base Layer Top - Merino Wool, Long Sleeve Closeout. Stay warm and toasty throughout your cold-weather adventures with SmartWool's Merino 250 Pattern base layer top, crafted in wicking, temperature-regulating merino wool with a movement-friendly fit. Itch-free merino wool is temperature regulating, moisture wicking and odor resistant Interlock knit construction Crew neckline Raglan sleeves for full range of motion Chafe-free flatlock seams Allover print design Base layer weight: Lightweight Made in Viet Nam