Now smaller narrower and different outsole and a slight tweak in the arch where the heal is now positive instead of the tried and true neutral or negative. Battery life is pretty good, I use it for work while attending zoom meetings. there is NOTHING still in terms of detailed troubleshooting, I have no idea. So strange . I didnt notice in the photo that some of the straps are grey and others are black. Arrived fast & in perfect condition. They feel cool using them. Very easy to put up, and the sticky pads left for 24 hours before loading it up and its help up fantastically. Soft inside with ever so slight arch. Excellent fit!