The women’s Sidley zip-neck thermal top works as a base layer for winter hiking, snowshoeing, and skiing in cold weather. Its stretchy, breathable fabric wicks moisture, dries quickly, and moves with the body during activity. The brushed interior adds warmth, while flat seams and underarm gussets help reduce friction. The high zippered collar and thumbholes make it easy to adjust within a layering system. This thermal top is part of the Marie-Pier Desharnais Collection. View the full collection. Materials: - 95% polyester / 5% spandex Features: - This product is certified “Designed in Québec”