This Reima Moomin Trivsam Kids Thermal Set combines expert design with natural materials to keep toddlers warm and comfortable during cold days and nights. The soft merino wool surface provides luxurious warmth, while the smooth lyocell reverse expertly absorbs moisture to maintain dryness. Thoughtfully crafted with flat seams to prevent chafing and an elastic waistband that expands with movement, this two-piece set regulates body temperature effectively and protects young children from chills in chilly weather. Ideal for active toddlers needing reliable, breathable thermal wear.