Keep warm and protected no matter the conditions with the collection of Helly Hansen thermals and base layers at MI Supplies. If you’re working outdoors, keeping warm is of the utmost importance. Helly Hansen offers an extensive range of pants, long-sleeved shirts and tees, guaranteed to keep you feeling warm and comfortable all day long. For additional warmth, Helly Hansen base layers offer a lightweight and practical solution. And, for further protection in the workplace, why not also explore the Helly Hansen hi-vis clothing collection?