The Men's In The Zone Baselayer Set. A performance base layer made with super soft seamless fabric for ultimate comfort. Fast drying with anti-odour control to keep you feeling fresh. Featuring breathable ventilation zones. SeamSmart technology: Less seams for more comfort, durability and unrestricted movement to enhance performance. Thermal fabric helps retain warmth in the coldest conditions. Quick-dry fabric keeps you dry and comfortable for longer. Anti-bacterial fabric kills odour causing bacteria for a fresher for longer feeling.