You need not use a handkerchief.
There are lots of types of cloth. Choose one.

I recommend non-stretch thin cotton cloth for beginners.

Notes

• Make all seam allowance the same width.
• Use iron often.
• Before sewing the lace to cloth, tack basting.

Very simple, no lace.

Stretch pants

If you use stretch cloth like T-shirt, it will fit you and comfortable.

Here are cotton jersey underwear with stretch lace.
Using the same pattern.


To see the process of sewing, click Big pants.

Make the length long and cut the front V.


Sew triangle lace to the front.