Hello, the thing you are talking about is called Velcro strap, also known as buckle-free strap and adhesive tape.
One side is woven with many loops (referred to as "sue"), and the other side is woven with many even small hooks (referred to as "hook side"). Align the two sides and squeeze them gently, and the loops will become Being hooked, it can play a connecting role to replace buttons, snap buttons, zippers, etc. It is characterized by easy use, time saving, fast, and softness on sewing parts.
It was invented by Swiss engineer De Mestral. It is said that he loved outings and hunting. Whenever he came back from the countryside, he would often find some seeds of philodendron stuck to his clothes. It was very troublesome to remove these seeds of philodendron. This aroused his interest, so he removed the seeds from his clothes. I took out a seed and observed it carefully under a magnifying glass. I found that the awns on the seed had small hooks. It was these small hooks that caught the yarn on the clothes. From this, he suddenly thought that if these similar small hooks could be produced on the straps, wouldn't it also be able to overlap the cloth straps instead of buttons and zippers? Inspired by the seeds of Pseudomonas aeruginosa, he finally designed a finalized product after 8 years of careful research. This is the origin of the Velcro strap
I hope the above answer will be helpful to you