Dont be fooled by the name: the WarmWool Granddad Shirt by Aclima is everything but old-fashioned. The sporty merino sweater looks great and can be worn as a functional long-sleeve as well as a light sweater. The WarmWool fabric is made of 100% merino wool. This ensures fantastic insulation, high breathability and is antimicrobial. It also guarantees the merino sweater will not absorb any foul odors, which makes the sweater fantastic for longer touring. The three-quarter-length button placket on the front is not only a visual highlight, but also makes putting on and taking off the sweater easier as well as providing better ventilation on hot days. The WarmWool Granddad Shirt is a fashionable, functional sweater made of pure merino wool. What else could you ask for? ;"