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Get it between 2025-08-26 to 2025-09-02. Additional 3 business days for provincial shipping.
THERMAL UNDERWEAR KIDS: STAY-PUT DESIGN: Oversized jackets? Check. Bulky sweaters? Double check. Cargo pants loaded with all the essentials? Yup, even them. No matter how heavy your outer layers are, our thermals for kids base layers for cold weather stay put under even the heaviest loads.
KEEP WARM AND DRY: Ultra soft fleece lined thermals for kids combined with moisture-wicking power can only mean one thing: Your little one is wearing Rocky fleece lined base layer kids underwear. No more sweaty, shivering nights — just warm, toasty goodness that wraps you in whole body comfort.
ALL-DAY COMFORT: From morning jogs in freezing temps to chilly winter nights, our underoos are designed to keep you comfortable and warm all day long. With our fleece base layer kids soft fabric that’s lightweight yet warm, it’s the kids underwear boys love.
EASY TO CLEAN: A few wash cycles, and your long johns are toast. At least, inferior waffle-knit thermal tights are. Not with Rocky winter undies! Our thermal wear for boys are made from durable poly-spandex and superior stitching, washing machines are no match for their tough-as-nails construction.
THERMALS KIDS LOVE: “Mooooom! They’re SO itchy!” Four words you’ll never hear your little one utter in a pair of Rocky thermal wear for kids boys underwear. With fleecy-soft comfort and a no-ride design, your little one will be nothing but cozy and content with Rocky kids thermal wear.
Keep Them Warm And Toasty Winters can get rough and cold. These thermal long johns will help your little boy make it through They are silky on the outside but lined with soft thermal fleece on the inside. They fit snug enough that there is no bulkiness showing when worn under clothes. They are also wonderful to sleep in. These pants will continue warming you even after being laundered many times. These Rocky Fleece Lined Thermal pants are well designed for wear under your clothes OR alone. The waist of the pants are elastic for a comfortable snug fit. These light-weight thermal pants make all the difference in the world.