Sigma main closing loop life in Tandem Skydiving April 14, 2015 Wish I had a solid # for you if I had to guess I would guess between 75-125 jumps. Using pack boy of silicone pull-up really extend the life. I make my own loops, using 1000# spectra so not shy about changing them.
Sigma main closing loop life
in Tandem Skydiving