Bushwalk Australia

I recently picked up a second hand Osprey Jib 35 for my kid. I got it at a pretty decent price, but given the age of the pack the inside has started to get tacky (unsurprisingly).

I was hoping to be able to wash it and leave it to dry inside-out, but I cannot for the life of me figure out how I would be able to release the metal frame without bending it.

If there are any suggestions (even if it's just to not bother) I'd be keen to hear them.

https://www.backcountry.com/osprey-pack ... cu-in-kids

I have successfully removed and reinstalled frames on Osprey Exos and Levity packs. These have figure 8 shaped spring steel frames, your frame however looks to be aluminium which might not be as forgiving.

In my case I used zip ties across the middle of the hourglass to compress the frame as much as possible, them popped the corners out. It was all pretty snug. I did this so I could seal the internal seams.

Maybe you could try talcum powder as suggested for sticky tent flys?
Perhaps the easiest solution would be a LW liner bag?

Agree with Moondog, a wipe out and a dusting with talc will likely resolve any hygiene and tackiness issues. Frame removal on these bags does have risk of structural damage.