Built on the same fine-gauge, 100 percent wool base as the high-neck inner, this version drops to a round neckline for a lower, more open layering option. The fit sits close to the body, thin enough to wear under shirts, knitwear, or outerwear without adding bulk. Sleeves and hem follow the same close, minimal construction as the high-neck version. Wear it under the corduroy blazer or the classic shirt as an unseen foundational layer.