If you're looking for cool comfort and sun coverage while hiking, the SUN-Stopper LT is for you. Super lightweight and breathable, it's the perfect polo for a summer hike, helping to keep you protected from the sun's rays. From carbon emissions to clothing - this shirt is made using an innovative carbon recycling technology, LanzaTech. Carbon emissions from manufacturing sites are captured before they're released into the atmosphere and converted into a raw material that makes polyester fibres.