The Calvin Klein Women's Modern Cotton Long Sleeve Crew Neck Top is a top-rated casual base layer top on Amazon. Made from a blend of cotton and modal, this shirt offers a soft and comfortable feel. It features a crewneck design and long sleeves, making it suitable for layering or wearing on its own. The shirt has a relaxed fit and a modern silhouette, providing a stylish look. It is available in various colors and sizes, ensuring a perfect fit for every woman. With its high ratings and positive customer feedback, the Calvin Klein Women's Modern Cotton Long Sleeve Crew Neck Top is a popular choice among women seeking a fashionable and comfortable base layer top.