The FXR Child Helium Pants bring advanced snowmobile performance to young riders with premium weather protection, warmth, and mobility built for winter conditions. The M-Series Omni-Stretch™ 300D / 450D polyester outer shell features a HydrX 20K™ waterproof / 8K breathable / windproof laminate and ACMT™ Dual Layer climate control system to help manage condensation and maintain comfort. F.A.S.T. 3.0™ provides a 210g combined F.A.S.T.™ / FXR Thermal Flex™ insulation value for warmth and floatation assistance, with perforated insulation at all vents for improved breathability. The seam-sealed ACMT™ lining system integrates with Dry Vent™ snowproof, moisture-resistant inner thigh vents for added climate control. Tough 600D polyester reinforces the instep and hem, while thermal seat, dry seat, and dry knee inserts add protection in key areas. Adjustable suspenders, waist adjusters, pre-curved knees, storm cuffs, and zip-off leg extensions provide a secure, mobility-focused fit with room to grow.