The jian, a traditional Chinese straight sword, was carried in various ways depending on the historical period, regional customs, and the social status of the wielder. Here are a few common methods of carrying a jian:

1. Waist Belt: One common method of carrying a jian was by suspending it from a waist belt. The sword would be secured horizontally or diagonally across the waist with the scabbard (usually made of wood, leather, or lacquered material) hanging down on one side. This allowed for easy access to the sword while keeping it securely in place.
2. Sash or Baldric: In some cases, a sash or baldric was used to carry the jian. The sash would be worn diagonally across the body, with the scabbard of the sword hanging from it. This method allowed the jian to be carried in a manner similar to a shoulder strap.
3. Back Carrying: Another method of carrying the jian was to wear it on the back. This was often done by warriors or travelers who needed their hands free. The jian would be secured with straps or cords to keep it in place while the scabbard rested against the back.

It's important to note that the specific carrying methods and styles could vary depending on the time period, social status, and regional practices in China. Different martial arts schools or historical periods might have their own preferred methods of carrying a jian.

In summary, the jian could be carried on the waist, across the body using a sash or baldric, or on the back depending on the individual's preference and circumstances. The choice of carrying method could also be influenced by the specific customs and traditions of the time and region.