The REI Co-op Long Sleeve Base Layer Crew Neck Shirt in Men's XL Heather Navy is designed for outdoor activities, making it a versatile choice for men who enjoy the outdoors. Made from a comfortable microfiber fabric with a solid blue color, this shirt features a crew neck and a pullover closure for easy wear. With a compression level of mild and an athletic fit, this shirt is perfect for active occasions while maintaining a classic and practical style. Ideal for those looking for a high-quality base layer top for their outdoor adventures.