Crafted in thermoregulating merino wool, this BOSS Menswear sweater is a high-performance layer that's versatile enough to wear from day through to night. Super-soft and breathable for luxe comfort. Slim fit. This product contains at least 80% better raw materials. This product is made with responsibly sourced wool. For us, responsibly sourced means mulesing free, and meeting the standards of the Five Freedoms of animal welfare.