Base layer set with soft lyocell on the inside and warm merino wool on the outside. The best combination of comfort and warmth in Reima base layer materials. A playful two-piece toddlers' thermal set designed for wintry days and nights, featuring a reverse made from soft, smooth lyocell that smartly absorbs moisture. The luxuriously warm surface is crafted from responsible merino wool. The pants and top protect from chills while helping regulate body temperature. This Reima cold weather set boasts comfy flat seams that help prevent chafing. An elastic waist expands with each breath.