Trousers with elastic waist
These are large trousers I have made. The waist has a double elastic. This shape is ideal for comfort, and ease of making. The most important choice was fabric. These are made of black and white jersey with a kind of painted lines.
This is a picture of the elastic waist :
I used a pattern I like, just changed a bit. This picture shows how to modify your classic trousers pattern to create an elastic waist. I have suppressed the original waist and the darts (black lines). I have drawn a vertical lign from the hip, and a upper edge for the elastic bands (red lines).
I also removed the sideseam for more comfort, speed of making and a better look.
To sew such trousers, you can find free patterns for men, women and children:
http://www.feminin.ch/couture/leggings.htm
http://www.feminin.ch/download/leggings.zip
http://sophie.schleich.free.fr/patrons/
trousers' pattern for maternity
http://sophie.schleich.free.fr/patrons/
how to adapt your own trousers for maternity ? just have a look at Ludmyla'sblog :
http://ludmilacouture.canalblog.com/archives/2005/11/09/981089.html