Apparel & Accessories > Clothing > Shirts & Tops Clothing > Sweaters in stock G. Label Tera Zip-Up Sweater in Navy, X-Small: Done in an ultrafine merino wool, this sleek mock-neck is double-knit, giving it a substantial feel. The slim fit tucks beautifully, and those half sleeves slip easily under a jacket, making it an ideal base layer (but it’s plenty warm enough on its own for those crisp but sunny in-between days).Details we love: the rich navy hue, the metal hardware, and the half-zip front (do it up or wear it down to open up that collar).100% virgin wool Made in Italy.