Value Set: TLS Mini 21 Wheeled Duffel + TLS Junior 25 Wheeled Duffel + Packing Cube - 3pc Set + Slim Packing Cube Solid Black. Tough Lightweight Smart â TLS truly defines the new Mother Lode series. We've completely re-designed our best selling wheeled duffels and added new features and innovative functionality and performance without added weight. If you're looking for outstanding design, style, and function, you'll find it in the new Mother Lode TLS series.