Tog24 Ergo Mens Tcz Thermal Trousers The Ergo base layer leggings are constructed in breathable, fast wicking and quick drying Diamond Dry fabric for performance and comfort. Diamond Dry fabric also delivers heat management, helps to eliminate odour and also has an excellent next to the skin feel. Other features include a branded elasticated waistband, fly opening and flatlock seams for added comfort. Designed for active outdoor use including hiking, walking and skiing.