The Tech Lite II Short Sleeve T-Shirt is icebreaker's most versatile, technical merino T-shirt and a reliable choice for all kinds of adventures. Tech Lite is made with a lightweight, breathable and odor resistant 150 gram jersey material of 100% pure merino wool. The offset shoulder seams prevent chafing when traveling with a backpack.icebreaker is inspired by nature and utilizes the performance properties of natural fibers to offer an alternative to clothing based on petrochemical synthetics. Merino is an annually renewable fiber that naturally resists odor, keeps you cool when it's hot and warm when the cold hits. At the same time, it allows the skin to breathe, which provides comfort all day, every day.