The Patagonia Capilene 3 Polartec Long Sleeve Base Layer Shirt in blue is a versatile activewear top for men, suitable for outdoor activities like hiking. Made from 100% polyester, this pullover shirt features a crew neck and long sleeves, providing mild compression and a comfortable fit. The classic striped pattern and machine washable fabric make it a practical and stylish choice for active occasions. Perfect for layering in cooler weather or wearing on its own, this Capilene shirt is a high-quality and durable addition to any outdoor enthusiast's wardrobe.