FXR Youth CX Jacket LIVE: NBC News NOW YouTube. The FXR Youth CX Jacket is built to keep kids warm, dry, and ready for any winter conditions. With FXRs HydrX technology, this jacket provides 5,000mm waterproofing and 5,000g m breathability, while the durable 300D sublimated shell with cold stop placket helps block out moisture and wind. The F. A. S. T. 3. 0 insulation and FXR Thermal Flex provide a cozy 235g insulation value, complemented by a nylon taffeta lining for comfort. Weather Protection: HydrX waterproof shell and cold stop placket keep out the cold Insulation: 235g F. A. S. T. FXR Thermal Flex for reliable warmth Convenience: YKK zippers, fleece lined pockets, removable hood, adjustable cuffs with Lycra inner extensions, and windskirt Safety: 360 3M Scotchlite reflective details for increased visibility With an adjustable hem and practical features, the CX Jacket offers flexibility and dependable warmth for winter activities.