A few weeks ago I was asking about "endurance" and 12 hour shorts that could be purchased from Aliexpress. I finished an 8 day bicycle camping ride this morning, before the ride, and out of desperation I purchased a pair of "Castelli Endurance 4" Shorts. I ended up wearing the Castelli shorts 6 of the 8 days. (Either washing the shorts or wet wiping down the chamois daily.) I was completely amazed how comfortable they were day-after-day. My DAREVie shorts, that I have been using on other multi-day rides felt terrible when I tried to use them a second day.
Attached is a pic of the Castelli shorts next to my DAREVie shorts.
Those GEL inserts on any of the bib is devil's invention. No idea how anyone is comfrtable on these for any maount of time. That why you find them on the cheaper of already cheap stuff on AE.
Afaik (and i geeked hard on the topic), gel = cheap = avoid, as a hard rule. You want foam, no gel. It then becomes a game of finding the right foam, at the right thickness in the right places, with the right density, and the right stitching of the pad.
3d printed saddles are popular for the same reason: it's dense, yet squishy, jar jar likes for the tushy.
I think i have bibs with the pad on that picture. comfort wise, it's ass (according to my ass).
Unsurprisingly, the cheji red pads that are popular on this thread, are full foam.