hoodie polartec sport 6450High quality material from Polartec has excellent thermal insulation properties. Unlike natural fabrics, it does not accumulate, but removes excess moisture from the body, providing comfort. In terms of thermal properties per 1 gram of material, Polartec is twice as good as sheep's wool and cotton. Products made of Polartec can be worn both separately and as an inner layer under windproof clothing. The YKK company is a world leader in the fastening