Discover the Calvin Klein Micro Grid CK 1/2 Zip Mid Layer Baselayer, designed for optimal comfort and performance. This versatile baselayer is crafted from durable polyester fabric, featuring a unique micro grid construction for enhanced breathability and effective moisture management. The 1/2 zip neckline offers adjustable ventilation, making it suitable for a wide range of temperatures and activities. Ideal for layering during sports, outdoor adventures, or as comfortable everyday wear. This mid layer provides a snug yet flexible fit, ensuring freedom of movement. Elevate your active wardrobe with this essential piece from Calvin Klein.