I bought this set and the 3 piece medium set.  With both sets, I was able to fit everything for a 2 week business trip to Europe in a 24" hard-sided suitcase, WITHOUT expanding it. I even included 2 military uniforms.  I loved being able to have a separate bag for shirts, jeans, underwear, etc. It made it so easy to unpack, as I just lived out of the bags. Putting things away and re-packing was a dream, No more rummaging thru the suitcase for an item; I knew exactly where everything was. Everything stayed neat without coming un-rolled or un-folded. If I wanted something in the bottom bag, just move the one on top, keeping everything neat and contained.  I liked them so much my husband wants some of his own.