A French seam encloses the raw edges, making additional finishing unnecessary. It looks flat like a plain seam from the front but appears like a tuck on the reverse.
Adapted from How to Use Adapt and Design Sewing Patterns by Lee Hollahan and published by Barron's Educational Series. Lead image from flickr.com/craftytalk.
See more info about sewing a French hem for jeans and pants!
Source: ,Amazon.com: How to Use, Adapt, and Design Sewing Patterns:...