4 way stretch thermal fleece (270 g/sq.m) with melange look, made with stretched polypropilene Dryarn® and designed to keep you warm, dry and comfortable with special brushing on backside. Thanks to its unique heat-regulating properties, this product can be used in all weathers. Brushing on backside enhances thermal insulation.It does this quickly and efficiently. Polypropilene Dryarn® has the lowest thermal conductivity of any fibre thereby providing the best insulation against the outside environment. This fabric creates a breathing barrier which insulates from the outside world and carries sweat from the inside out. An insulating, protective barrier which also breathes to ensure that the skin stays dry; warm in winter and cool in summer. ANTIUV: UPF50+.