Save on jeans for the entire family right now at Old Navy. Adult jeans start at $19 and children's sizes start at just $10. Sale ends February 27th. You'll find tall, petite, regular, and plus sizes. Shop SearchByInseam.com to find the exact inseam you need quickly and easily (no clicking through the Old Navy size chart to figure out which inseam matches which pant leg style!). Free shipping on orders over $50.