The Project Twill LS is the versatile layer you&&';;ll grab day in day out, whether you&&';;re heading to the boulders or putting in a day at the office. 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.