>>2535292Litterally any mesh suspension from breathable packs. Lowe used to do them as did OR. The thing is ospreys was a marketing gimmick to act like they'd invented something when really it was just an inferior floating load setup than say, all of the hunting worlds vented bags. It's insane that anyone called it a feature.
I'm not interesting in directing you to better stuff so you can buy it all up and jack thge prices for actual users. Someone who is still on the reddit brand loyalty bandwagon should stay on trail. The system was so shit for big loads that they flat out ceased it in some series. The shit was squeaky and annoying either way and a copy from older tropical military packs. Even the dumb cunts in charge had to abandon it on a bunch of packs. You can figure this all out by yourself by using stuff.