Hoggs of Fife Field & Outdoor Coolmax Socks Green/Navy. Perfect for performance, the Hoggs of Fife Field & Outdoor Coolmax Socks are perfect for the budding outdoor explorer. Designed for the perfect balance between Coolmax and natural cotton, the Field & Outdoor Coolmax Socks are the ultimate sock when it comes to keeping your feet cool and fresh all day long. With breathable and wickable properties, the Field & Outdoor Coolmax Socks features an elasticated ankle and arch support, smooth toe seams and reinforced heels and toe sections.