The Columbia Butte Zip Thru Fleece in navy and black is designed to provide warmth and comfort during colder temperatures. It features innovative Omni-Heat thermal-reflective technology that retains heat effectively, keeping you cozy. The breathable lining incorporates silver dots that reflect body heat, creating a microclimate to keep you warm when temperatures drop. Made from 100% polyester 225gm anti-pill solid microfleece, the outer shell is durable and soft to the touch. The lining is made from Omni-Heat Reflective 210T taffeta, also 100% polyester, enhancing both comfort and functionality. The insulation consists of 40g Microtemp XF II, composed of 85% recycled polyester and 15% polyester, promoting sustainability without compromising on performance. The fleece has secure zippered hand pockets for storing valuables and a soft, anti-pill microfleece for lasting comfort.