Men's sleeveless pullover, 70% cotton and 30% milk fibre; blue colour. New Holland logo embroidery. Eco-friendly packaging. MILK PROTEIN FIBRE is produced from casein using advanced technology manufacturing processes which are respectful of the environment and protect natural proteins and amino acids, precious elements for healthy skin. Similar in feel to silk, smooth and cool to the touch, this fibre has low thermal conductivity, providing excellent heat retention. It absorbs moisture easily, leaving skin soft and dry.