Kilpi WILLEA-W: Women's functional thermal T-shirt for active movement! The Kilpi WILLEA-W functional T-shirt is ideal as a first layer for sports and outdoor activities in cold weather. The material with OPTI-DRY technology effectively wicks away sweat, is pleasantly elastic and quick-drying. Key features: Quick-drying OPTI-DRY functional material. Women's tight-fitting fit. Suitable for sports, hiking and casual wear. Great as a bottom layer. The Kilpi WILLEA-W keeps you warm and comfortable even under heavy loads.