I'm always using Tyvek as a groundsheet, connected to the tent with a flexible cord. This set of buckles is made for the BA Copper Spur UL3 (2021), and when Tyvek is used, the tent can be pitched as fly-only. Also, in the normal setup with the inner tent, you can hook the Tyvek to the tent poles.
Note: Buckles may vary depending on the model and year of production.
The author marked this model as their own original creation.