Arctic Hero Baby Boys’ Thermal Underwear - 4 Piece Waffle Knit Top and Long Johns (12M-4T)

Discover everyday comfort and reliable warmth with this baby boys thermal set, thoughtfully designed as a cozy base layer for colder days. The set includes a soft long sleeve top and matching long johns, both crafted with a breathable waffle knit that keeps little ones warm without feeling heavy. Perfect for layering under boys long sleeve shirts or wearing on its own, it adapts easily to school days, playtime, or relaxing at home. The clean, classic design makes mixing and matching simple, whether paired with jeans, sweaters, or outerwear. Made for busy families, this set maintains its shape and softness through repeated wear, offering durability you can count on. Ideal for toddlers and bigger kids alike, it transitions smoothly from season to season-light enough for mild weather yet insulating when temperatures drop. A dependable, comfortable choice for everyday layering and all-day warmth.