Boys' Trousers Pattern
[b 9641] by Burda Patterns

Sewing level: very easy
Child heights in cm:116, 122, 128, 134, 140, 146, 152, 158, 164, or 6 to 14 years old.
Casual trousers in three lengths with elastic waistband and belt carriers - easy to sew as the fastening/closure is only for show! Trousers A & B have hip-yoke pockets and side flapped pockets. Trousers C have patch pockets with slanted openings.
Fabric recommended: Gabardine, cotton fabrics, light-weight denims, linen