Jockey shorts worked fine for me. I've never heard of the brand you mentioned.
PSA increased from 2.6 to 3.5 in one year
biopsy march 2008 - cancer present gleason 7
Robotic Surgery May 9, 2008 - houston, tx
Pathology report -gleason 8, clear margins
12 month PSA <.04 (low as the machine will go)
continent at 10 weeks (no pads!)
ED is still an issue but getting better