I love packing cubes for casual t-shirts and shorts. However, the cubes wrinkle dressy shirts and pants too much so this is a good alternative to packing cubes for your dressier items. You just use the included folding board to fold your shirts and pants into the same size, stack them one on top of another and close the four flaps which are kept shut by velcro. Since these tight flaps prevent any shifting in transit, all of my shirts and pants stay relatively wrinkle-free. This folder also compacts the clothes to make more room for your other items. I has always been a pain to pack/unpack/repack for a trip. Now, I just pack once, put the folders & cubes into the hotel dresser and take out what I need. On the night before my departure, I just put back the clothes that I had used without needing to repack the entire suitcase. This folder along with my packing cubes just makes packing so much easier. No more packing into cavernous bags, unpacking wrinkled clothes which had shifted in transit and repacking everything the night before my departure. I highly recommend this product!