The most important thing is making them comfortable.
Because children have soft and delicate skin.

• Choose a high-class elastic, and don't make it tight.
• Cheap lace may be itchy. Attach the lace to outside.

For little boys, refer to child boxer and baby briefs.

Patterns

Click here. Print on A4 paper 3 times.
Then cut out them. The pieces are front, back and crotch.
There are 2 sizes of hips. 21 and 25.
I recommend to make bigger than your child.

Materials

• Stretch cotton fabric
• Lace
• Ribbon
• Elastic

Process

The front and the back are continued. It's very comfortable and easy to make.

1. Cut the cloth with seam allowance.
2. Stitch the crotch to the outside of the cloth.
   
3. Sew the sides.
4. Zigzag stitch at the seam allowance.
5. Fold and stitch the hem of the thighs and waist.
6. Stitch a lace around the waist. It's gorgeous if you make lace double.
7. Stitch a ribbon.
8. Pass the elastic.

The left is for mother.
Oh! Child has bigger hips than mom's? This is an elastic magic.