Popular since 1990s, now you can carry things on your torso.

Air Force SRU-21/P Mesh Net Survival Vest, 1980s
Shown one dated 1980s, size Large. Stock Number Reference: Vest, Survival, Mesh Net, SRU-21/P Assign Date: 1966-09-04 Size-NSN Sheet Size NSN Medium 8415-00-933-6231 Large 8415-00-933-6232