How to Choose the Right Kids' Backpack Size for School (2026 Guide)

Quick Answer

For most children ages 3-5, the Fletcher Kids' Backpack Medium fits best. For children ages 4-7 who carry a tablet and more school supplies, choose the Fletcher Kids' Backpack Large.

How to Choose the Right Size: Decision Rules

• Check the Age Range: Use the manufacturer's recommended age as a starting point. The Medium is for ages 3-5; the Large is for ages 4-7.
• Measure Your Child's Torso: The backpack should sit 1-2 inches below the shoulders and rest in the curve of the lower back, not sag below the hips. Adjust straps so the pack fits snugly. Have your child try on the backpack with a few books inside to check the fit before buying.
• Consider What They Carry: If your child needs to bring a tablet, a lunchbox, and multiple folders daily, choose the Large. For minimal items like a snack and a change of clothes, the Medium works well.
• Look for Adjustable Straps: Both Fletcher backpacks have padded, adjustable shoulder straps and a chest strap. These features help customize the fit as your child grows. Tighten the straps so the backpack stays close to the body, not dangling.

Backpack Options at a Glance

• Fletcher Kids' Backpack - Medium: Designed for children ages 3-5. Its smaller dimensions and lighter weight make it ideal for preschoolers or kindergarteners who only need to carry a few items.

  

• Fletcher Kids' Backpack - Large: Designed for children ages 4-7 and includes a padded tablet sleeve. The extra capacity and tablet protection suit older elementary students who bring electronics and more school supplies.

  

Which Size Is Best for Your Child?

Best For

• Children ages 3-5 who carry light items (snack, small toys, change of clothes)
• Preschool or daycare use where a smaller, lighter pack is easier to manage

Not For

• Children over age 7 who need to carry a laptop or heavy textbooks (consider a larger youth or adult backpack)