Core Gain Thermal MidlayerCraft Core Gain Thermal Midlayer This versatile midlayer from Craft is designed for optimal warmth and comfort. Made from 95% recycled polyester and 5% elastane, it features a hexagon grid for excellent insulation. The half zip design with thumbholes ensures flexibility and warmth, while the turtle neck provides additional protection against the elements. Perfect for cold conditions or milder weather, this midlayer is a must have for any athlete or