Black Diamond Project Twill Shirt - Men's Raging Sea/Henna Medium. Featuring a certified organic cotton twill this long sleeve shirt has two chest pockets with button closures and reinforced elbows for added durability. Designed for year-round use the Project Twill is a workhorse button down built for the climbing life and everything in between. Specifications for Black Diamond Project Twill Long Sleeve Shirt - Men's: Manufacturer: Black Diamond Sleeve Length: Long Age Group: Adults Apparel Fit: Regular Gender: Male Application: Outdoor Shirt Style: Shirt Fabric/Material: 100percent Cotton Weight: 536 g Features of Black Diamond Project Twill Long Sleeve Shirt - Men's Organic cotton content Reinforced elbow patches Two chest pockets with buttons Reinforced elbow patches Package Contents: Black Diamond Project Twill Long Sleeve Shirt - Men's Black Diamond AP7530919651MED1: Project Twill Shirt - Men's Raging Sea/Henna Medium