with my knee pads and small diameter trees when using a platform. There would only be room for one knee, and I had to keep switching knees or when I tried to use both they would separate. I used a piece of cord to tie around my legs just above my knees and it worked. In fact, so good that I used some one inch tubular webbing with some snap buckles to make it even better. It's light and when rolled up, secured with a rubber band, very compact for carrying. I haven't seen this mentioned on the site and thought I would share in case anyone else was having the same problem.