Inspired by a 1960s photo of Yosemite climbers at a valley-floor wedding, the Lambswool Crew is exceptionally soft, has some nylon for durability and shape, and comes in heathered colours.The lambswool crew is made of an exceedingly soft yet durable blend of 5-gauge lambswool and nylon (80%/20%) that you can wear alone, over a T-shirt or under a jacket. Skin-friendly and smooth lambswool moderates your core temperature, resists odors, and maintains its shape through miles of road-tripping. Offset shoulder seams provide a smooth flow under pack straps or a camera bag. Ribbing at the neck, cuffs and hem glides smoothly over skin. True to the original, we added stripes on the arms. Recyclable through the Common Threads Recycling Program.