The Sequoia Tree is the worlds largest tree and can live over 2000 years. You can see these magnificent trees on Mount Whitney in the Sequoia National Park. The Sequoia is Minus33s mid weight 230 g/m, 100% Merino Wool womens zip top. Whether touring the giant trees in the park or climbing Mount Whitney along the John Muir Trail you will be warm and comfortable. The sequoia is truly an all round top with a mock neck to hold heat in and with a zip to cool you down when necessary.