don‘t look at this as a whole... there’s cuts... the first bit is simple mograph, tori and tubes in a linear cloner with a plain effector and linear fall-off and a delay, you could possibly keyframe the bevel of those tubes to look like tori n the beginning and then transform to rather flat tubes. although there‘s also a cut at this point in the video, so there’s probably just 2 different setups for this... the whole thing can be deformed with an ffd or plain effectors in deformer mode with some fields to take on the shape of the shoe, or you could just model those destructively into place... after the second cut it‘s another setup, which looks identical to the second shot in the beginning, but is open at the bottom so a softbody sim run on it allows them to look like it’s breaking apart.