For several years I've been looking for the Vanity Fair long pant liners that I used have back in the 80's, but I couldn't find them anywhere.  I found the knee length and shorter ones but wanted the long ones that not only keep you relatively warm but don't ride up.  I ordered four pair of the Snip-It Pants Liner in desperation knowing that I could return them if they weren't satisfactory. When they arrived, I was skeptical as the material feels a little different from the Vanity Fair.  Now I just wish that I had tried them several years ago!  I love them!!!  The fact that you can shorten them easily if you need to was a factor in ordering (I am 5'4").  However, I didn't need to shorten them at all.  They are perfect for me. (They come right to the bottom of my pants.) They are not intended to be long underwear (like CuddleDuds) but will be perfect for spring and summer also.  I highly recommend them if you are looking for a long, very comfortable pant liner.