"What Our Gearhead® Experts Are Saying:""I've been living in the Project Twill Long-Sleeve Shirt on rest days, and it's become my go-to between crag sessions and town runs. The organic cotton has a really satisfying weight to it, substantial enough to feel put together but relaxed enough that I never want to take it off.""Some shirts just fit the life, and the Project Twill Long-Sleeve Shirt from Black Diamond is one of them. It's the kind of button-down you reach for on a slow Saturday morning before a day at the crag, or tuck into when you need to look like you have it together after a week in the mountains. The GOTS certified organic cotton twill has a satisfying mid-weight structure that layers well when the temperature drops and wears clean on its own when it doesn't. Reinforced elbow patches add quiet durability for the moments when you're leaning into a rock face or propped up at a campsite table, and two buttoned chest pockets keep the small stuff close without making a fuss about it. This is a shirt built for the long haul of a climbing life, the errands, the off-days, and everything that fills the time between routes."