The Klimatex CALUM functional undergarment set for winter sports. It includes a functional long-sleeved T-shirt and pants. The products are sewn with flat seams eliminating skin irritation during wear. The material contains Lycra to ensure better shape stability and freedom of movement. Soft to the touch, feels similar to natural fabrics, doesn’t irritate the skin. The inner side of the material is brushed and thus ensures better thermal insulation.