You buy a ton of ergonomic butt pillows from Kinja Deals for around ~$10-15. We haven’t sat on most of them, but I did sit on this one all week, and the results are immediate, and my back feels great.
The ZGUP (ugh) basically forces you to sit with better posture, and lives up to its name in making you feel pretty weightless at the same time. If you’ve got bad posture or back pain and spend a lot of time sitting (that’s basically everyone), this is an easy recommendation.
When we asked the campaign to release more cushions at the sold out $59 early bird price point exclusively for our readers, we had not yet seen the obscene $18 shipping costs. This is still definitely worth it to not be in pain, but, yeah.