YANGGUANGBADIAN Primary School Children's Backpack Spinal Protection Pressure Relief 4-6 Grade Girls Boys Large Light Purple Shoulder Bag

Ergonomic back panel that fits closely to the back, promoting upright posture and reducing fatigue when carrying the backpack to school.

Even distribution of pressure across shoulder, waist, and back to alleviate back strain.

Balanced shoulder vertebra pressure with widened and thickened shoulder straps for enhanced comfort.

Chest strap with anti-slip H-shaped buckle to cushion thoracic vertebra pressure and reduce back impact.

Integrated molded backboard for structural support.

Shoulder load reduction validated by ICAS Shanghai Inger Group testing, comparing 5kg load bearing on shoulders.

Lightweight construction to further reduce carrying burden.

Product dimensions are manually measured with a possible error margin of ±3cm; actual product may vary slightly.

Due to accessory upgrades, bottom stud designs may vary between batches; both old and new versions are authentic YANGGUANGBADIAN products and can be purchased with confidence.