Review (5/5): Put your travel liquids all in one place
The bags are secure and because of their width, hold mush more than a large zip-lock bag. You can pack many liquids into these TSA approved bags, as long as they are under 3.3 ounces. Many small toiletries are specifically holding their tubes and bottles under that amount to make for easily travel.
I am flying to Europe for three weeks this summer and Delta Airlines sent an email to pull out all your liquids when you go through the line. The bag makes it easy to pull out or your carry on to separate from your bags, electronics, and jackets.