The Calvin Klein 2025 Micro Grid 1/2 Zip Mid Layer Baselayer offers superior comfort and performance. Designed with a micro grid fabric, this baselayer provides excellent warmth without bulk, making it ideal for layering. The 1/2 zip design allows for adjustable ventilation, while the soft polyester material ensures a comfortable fit. Perfect for various activities, this versatile grey baselayer is a must-have for your wardrobe.