A sporty wool sweater made from soft merino wool as a base layer. The sweater has a mid-height neckline with a zipper. Flat seams prevent friction on the skin when moving. The side seams are shaped towards the front of the sweater to ensure maximum comfort during activity. The underarm area is knitted in a contrasting color. Vail can be used as a base layer on both cold and warm days. It can also be worn as a thin sweater on the skin.