While tracksuits and sweatsuits are often used interchangeably, there's a key difference. Tracksuits are typically made of performance fabrics designed for athletic activities, often featuring stripes and a more fitted silhouette. Sweatsuits, on the other hand, are primarily for casual wear and comfort, usually made of softer materials like fleece. While both can be worn by families for a coordinated look, tracksuits matching family members in athletic attire are more common for sports events or active outings.