the only pocket that is safe to put a tracker in is the hip pocket of pants with suspenders and a bib, during a slide your jacket, pack, and inner layers can get torn off but statistically bib pants tend to stay oni keep mine in the hip pocket of arc'teryx bibs but you should e-mail BCA and ask them for a harness, don't improvise with your tracker, you want that thing to stay onremember when you're wearing it it should be only 1 layer away from the skin, so like a base layer and then tracker, not further in