The Black Diamond Project Twill Long Sleeve Shirt Mens is a rugged and versatile organic cotton button-down designed for everyday wear in any season. This timeless piece is perfect for both outdoor adventures and office days, making it an essential addition to any wardrobe. Crafted from certified organic cotton twill, it features two chest pockets with button closures and reinforced elbows for enhanced durability. Whether you're climbing or working, the Project Twill LS is built to handle it all. Durable organic cotton twill construction Two chest pockets with secure button closures Reinforced elbow patches for added strength Suitable for year-round use Materials 100% cotton