Not as durable as the 100% Recycled Reinforced Hanging File Folders but they're not too flimsy either. They're perfect for the job. I have all the folders jam packed with records that I don't need to handle on a day to day basis so they should last a while. The color option makes them look more cheerful.
I sort my areas of interest using color-coded hanging - and regular - file folders. The yellows are used most frequently and travel with me and hold up really well. I rarely need to replace them and buy more to hold my expanding business. The tabs are VERY easy to insert which is a huge plus to me. I have had to throw out new hanging folders (another brand) because the slits were almost glued to the flap.
I was upset to discover that there were 25 hanging folders but only 21 tabs in order to label them. Threw things off for a bit until I had to get some more on my own.