You can just pop open a section of the zipper, then use the zipper over the opened chunk of zipper and it re-seals it<p><a href="https:&#x2F;&#x2F;youtu.be&#x2F;zMTXzQ0Vqn8?t=111" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;zMTXzQ0Vqn8?t=111</a>