Space Bags?

Question

I have a quick ques for anyone whos ever used space bags. I know that they are vacumn sealed. But when I go on my trip and open up my luggage to change, I obvuiously have to open the bags. But when their opened air enters, so how would I close them down to their flat original form?

Answer 1

If you're going on a cruise or staying at a hotel, you can ask to use their vacuum, maybe?