Personally I have both packed in my bag. Usually I like the thin ones with wings but for the first couple of days I really appreciate the extra padding down there. The thick ones are also extra long so they provide good protection from leakage and of course are extra absorbent. Day 2 to day3 I use the the thins as my flow subsides. It's really a personal preference so I would take both and see what you think at the time. Godd luck.