Pit to pit 14.5" The SmartWool Intraknit 200 Thermal Merino Base Layer Crew Shirt in Gray, Size XS is a high-performance activewear top designed for women who enjoy skiing, hiking, running, and jogging. This pullover shirt features a crew neck and long sleeves, making it ideal for cold weather activities. Made with breathable and stretchy SmartWool fabric, this thermal base layer provides comfort and support during active pursuits. Easy to care for with machine washable instructions, this shirt is a versatile and stylish addition to any outdoor enthusiast's wardrobe.