Wear it as a heavyweight twill button up or layered as a midweight shacket—built for adaptable, all-season use. Inspired from the Royal Robbins archives, this durable button-up shacket is a basecamp essential that's built to last a lifetime. It’s made primarily with hemp, a natural fiber chosen for its durability and sustainability properties. Blended with organic cotton and recyled polyester, this super comfortable shirt will get even softer with use.