L-shaped load-bearing structure to conform to the back
Lightweight but designed to maintain spinal protection; not excessively light to avoid compromising support
Water-resistant and abrasion-resistant eco-friendly materials with lotus leaf style waterproofing
Certified abrasion resistance and color fastness according to GB/T 3920-1997 standards (dry rubbing 4-5 rating)
Complies with the People's Republic of China Health Industry Standard WS/T585-2018, limiting backpack weight to no more than 10% of student's body weight
Additional Notes:
Strict size selection based on child's height is advocated since 1999 to ensure optimal spinal protection
Weight and size measurements may have slight variations due to manual measurement and production differences; actual product shall prevail
| Width | 32.9 |
| Height | 10.9 |
| NetWeight | 1.1 |
| Brand | DR·KONG |
| Model | Spine Protection Backpack |
| Target User | Children and adolescents, suitable for grades 1 to 9 (approximate height ranges specified below) |
| S Size | For height below 125 cm (Grades 1-3) |
| M Size | For height 125 cm and above (Grades 3-5) |
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| L Size |
| For height 150 cm and above (Grades 6 and above) |
| XL Size | For height 165 cm and above |
| Capacity | 25 Liters |
| Weight | Approximately 1000g to 1100g (Note: Weight may vary by ±100g due to manual measurement and production batch differences) |
| Material | Nylon and Polyester Fiber |