You can take a seat anywhere with this wearable chair - YouTube
3 Folding Wearable Chairs That Let You Take a Seat Anywhere
Amazon.com: Invisible Seat Leg Brace Magic Stool, Wearable Portable Seat Ergonomics Lightweight Chair, Metal Folding Fishing Chair for Music Festival Concert Subway Bus, Bear Up to 330Lbs ( Size : XL/180-190cm ) :
3 Folding Wearable Chairs That Let You Take a Seat Anywhere
WORKHORSE SADDLE CHAIR | QUIT THE WAY YOU SIT
5 Sitting in chair leg exercises that you can do at any time
The wearable LEX chair lets you sit where you want – but will it catch on? | Wearable technology | The Guardian