Qixinghu Primary School Backpack for Grades 1-4-6, Ergonomic Spine Protection, High Capacity, Stylish Girls and Boys Schoolbag

3D three-dimensional back pad with thickened breathable shoulder straps for enhanced comfort

Scientifically adjustable chest buckle to balance shoulder pressure and prevent uneven shoulders

Thickened S-shaped shoulder straps conforming to physiological curves to reduce shoulder strain

Thickened, breathable, detachable waist support suitable for adolescent development

Cloud-feel shoulder straps that are thickened and widened for comfortable load distribution without shoulder pressure

Integrated 3D butterfly wing spine protection system with breathable back pad to evenly distribute force and reduce sweating

Multi-layer compartments for organized storage

Large capacity main compartment, front zipper pocket, front stationery pocket, and side pockets

Environmentally friendly, waterproof, and antibacterial high-density Oxford fabric with lotus leaf water-repellent effect

Orange, Light Green, Purple, Royal Blue

Suitable for A4 books

Recommended for Grades 1-3 (small size) and Grades 3-6 (large size)

All measurements are manual and may have a 1-3 cm deviation; actual product prevails

Smooth zipper with brand customization for easy use

Comfortable woven strap handle, can be carried or hung

Reinforced stitching and rivet reinforcement for durability