Thermal underwear set consisting of a long-sleeved T-shirt and leggings. Semi-fitted long-sleeved T-shirt with cuffed sleeves. Snap-button fastening on the shoulder up to size 104 for easy dressing. Soft leggings with an elastic waistband and stirrup cuffed legs. In cold weather the set can be worn as base layer clothes. Special jersey fabric properly keeps warmth and repels moisture.