Explore the Selection｜Seirus Kids' JR Heatwave All-Season FI Bottom｜ Pants & Shorts

All-Season Warmth for Young Athletes — Seirus at a Great PriceThe Seirus Kids' JR Heatwave All-Season FI Bottom is the versatile base layer bottom built to keep young athletes warm and comfortable across all seasons and conditions. Seirus’ Heatwave technology delivers exceptional heat retention in a lightweight, flexible construction — while the Fleece Inside (FI) lining adds a soft, cozy layer against the skin for all-day comfort. Whether it’s ski days, cold-weather sports, or layering under snow pants, this base layer bottom has young adventurers covered.Size: LColor: BlackCondition: Gently Used, Excellent ConditionOriginal Retail: $44.99Key Features

Heatwave Technology: Seirus’ signature heat-retention construction keeps young athletes warm in cold conditions without adding bulk.

Fleece Inside (FI) Lining: Soft fleece interior layer delivers cozy comfort against the skin — no scratchy base layer complaints here.

All-Season Versatility: Engineered for year-round use — warm enough for winter sports, breathable enough for shoulder-season activity.

Flexible Construction: Moves with young athletes during high-output activity without restricting range of motion.

Classic Black Colorway: Versatile black pairs with any outer layer — a practical, go-anywhere base layer bottom.
For parents who want a reliable, warm base layer bottom for young athletes, the Seirus JR Heatwave All-Season FI Bottom delivers. At $19.99 vs. $44.99 retail in excellent used condition, it’s a smart buy for any cold-weather season.
Brand:SeirusSKU:5322673995816Tags:apparel, Baselayer Pants, Bottoms, kid, L, NOREVIEW, pants, Seirus, USED, USED Gear, warehouseSize:LColor:Black