This seems like a ridiculously simple question but I have not been able to find a satisfactory answer on this forum. If I wanted to buy a pair of trousers and lengthen them, by how much can they be lengthened, and how much material should be left in the hem? I understand that extra material in the hem or a cuff means you can increase the length, but by how much? If you use most of the material won't that leave a non-existent hem? I assume the lack of the hem or a very small hem would then be very light, and not leave a lot of weight at the bottom of the trouser. What are best practices when it comes to lengthening the inseam of dress pants? Can anyone clear this up for me? In my situation, I am looking at a pair of trousers that are 30.25 length, with 2.75 in the hem. Thanks.