I bought one of those but the zip fell out after 4 uses. Maybe I just had a duff delivery. It was also refused at T3 because of the zip and I had to decant into a baggie. I think I must have tried about 6 or 7 different options to find a bag that works.

The Muji one is much stronger and seals up properly. The T3 security agents have pounced on it with glee, only to be disappointed to find it has a proper ziplock seal