Here is an easy and fast way to fix an undone or fallen hem on dress pants with a sewing machine.
How to repair a hole in polyester track pants - Quora
Q&A: How to Alter Pants that are Loose in the Seat - Threads
How to Hem Lining on Pants (or Skirts) – The Sewing Garden
HOW TO FIX DRESS PANTS HEM, Blind Stitch
Side seam pockets often get a rip at the bottom of the seam.
i.ytimg.com/vi/mfYadNBXb6Y/sddefault.jpg
How to Mend: How to Fix a Hem on Dress Pants
How to Sew a Rip - Best Way to Sew a Tear or Holes
How to Mend: How to Fix a Hem on Dress Pants
How to Hem Pants By Hand - Summers Acres
How to Sew a Hole in 5 Easy Steps - Bob Vila
How to Repair a Hole in Your Clothes – Sustain My Craft Habit
How to Hem Pants By Hand - Summers Acres
How to Mend: How to Fix a Hem on Dress Pants