THERMAL BASE LAYER SET- Designed for warmth and comfort, this boys thermal set works as long underwear or everyday outfit. Soft stretch fabric keeps kids warm without bulk, perfect for layering in cold weather or wearing on its own. SOFT STRETCH COMFORT- Made from 95% Polyester 5% Spandex 4-way stretch knit, this breathable set feels smooth against skin. Flexible fabric allows full movement for school, sports, lounging, or active play. VERSATILE EVERYDAY WEAR- Wear as a jogger outfit, thermal underwear, or base layer under winter clothing. Ideal for school, travel, outdoor play, or relaxing at home in cooler temperatures. FUNCTIONAL FIT DESIGN- Long sleeve crew neck top and jogger pants feature elastic waistband for secure fit and easy pull on. Designed to stay in place during active movement without restriction. EASY CARE DURABILITY- Machine washable and built to last without shrinking or fading. Strong lock stitching holds up to daily wear, making this a reliable go-to outfit for active kids. This boys thermal set is built for both comfort and performance, making it a versatile essential for everyday wear and cold weather layering. Designed as a base layer or standalone outfit, it delivers the perfect balance of warmth, stretch, and breathability. Crafted from a soft 95% Polyester 5% Spandex 4-way stretch knit, the fabric feels smooth against the skin while allowing full mobility. Lightweight yet insulating, this set keeps kids warm without overheating, making it ideal for school days, outdoor play, travel, or lounging at home. The long sleeve crew neck top provides a classic, comfortable fit, while the jogger pants feature an elastic waistband for easy pull-on wear and a secure fit that stays in place. Whether worn as thermal underwear, long johns, or a casual outfit, this set adapts to a variety of uses. Designed with durability in mind, strong lock stitching ensures long-lasting wear through active use. The fabric maintains its shape, softness, and color after repeated washing, with no shrinking or fading. Perfect for layering under winter clothing or wearing on its own during cooler seasons, this thermal set offers reliable comfort, flexibility, and everyday practicality for active kids.