A Jockey Vest A-Shirt in White and Size Large (L 36-38) is a classic, sleeveless, and often ribbed cotton undershirt. It's designed for comfort, breathability, and usually features a deep round neck or athletic cut, perfect for layering beneath clothing or wearing on its own in warm weather. The size 36-38 typically refers to the waist measurement for a size Large in some Jockey sizing charts for undergarments