Vintage JCPenney Men's Stretch Thermal Long Sleeve Shirt in a natural off-white color. This deadstock base layer features a superior thermal knit fabric designed to trap body heat for added warmth while providing built-in stretch for ease of movement. Constructed from a durable blend of 40% stretch nylon, 30% polyester, and 30% combed cotton, it offers a comfortable fit with a classic crew neck design. Ideal for cold weather layering or as a cozy loungewear piece, this new-in-package vintage staple maintains its original quality and classic appeal.