The Lululemon About That Base Long Sleeve top is a stylish and functional activewear piece designed for women in size 4. This pullover top features a crew neck, thumbholes for added warmth, and a stretchy knit fabric that is perfect for running and jogging during the winter, fall, and spring seasons. The black and teal geometric pattern adds a colorful touch to the slim fit design, making it a versatile and comfortable option for active women looking for a quality brand like Lululemon. Machine washable for easy care, this long sleeve top is a must-have in any woman's activewear collection.