Our highly breathable, comfortable, do-it-all merino wool T-shirt, the Tech Lite Short Sleeve Crewe Seven Summit Stack is a go-to top for four seasons worth of trails, travels, and active pursuits. With capabilities as varied as the adventures you’ll take it on, the Tech Lite features our corespun fabric, which uses nylon fibers wrapped in merino wool to provide added strength and durability while maintaining next-to-skin softness. Original screen-print artwork Zachary Snyder provides a topography lesson in the world’s highest peaks.