**Specifications:**
**Brand:** KALA·Y
**Certifications:** JD Quality Certification, National Standards
**Testing Results:**
- Seam Strength: ≥200N
- Stitching Strength: ≥245N
- Formaldehyde Content: ≤300mg/kg
- Azo Dye Content: ≤75mg/kg
**Durability Testing:**
- Zipper Durability: 500 cycles without teeth missing, 600 cycles without teeth damage
- Corrosion Resistance of Plating Parts: Grade ≤6, no corrosion observed
- Decorative Magnetic Clasp: 400 insertions without abnormalities, 500 insertions without abnormalities
**Features:**
- Ergonomic design for students in grades 2-5, height 120-155cm
- Five-dimensional ergonomic design for lightweight carrying
- Water-resistant lotus leaf fabric
- Magic Melody Series for youthful charm
**Patented Structure:** Easy to clean and store, patent number: ZL201620445820.6
**Material Quality Assurance:** Free of formaldehyde, azo dyes, harmful carcinogens, heavy metals
**Safety Standards:** Compliant with GB18401-2010 Class A safety standards
**Antibacterial Properties:** Double antibacterial rate up to 99%
**Design:** U-shaped ergonomic shoulder straps, Y-shaped breathable cushioning system, adjustable chest strap, rainbow balance straps, anti-slip buckles
**Additional Features:** Reflective elements, reinforced handles, SBS smooth zippers, abrasion-resistant bottom, waist strap hole design
**Color Options:** Navy Blue, Burgundy, Sky Blue, Lavender Purple
**Dimensions:** 280*360*175mm, 18L capacity
**Model Options:** Suitable for boys and girls up to 135cm and 132cm respectively
**Weight:** Slight variations due to batch differences
**Product Code:** CX2587
**Main Materials:** Fabric + Synthetic Leather
**Inner Lining:** Fabric
**Warranty:** 30-day return, 2-year quality guarantee, 30-year factory quality assurance
**Production Bases:** Zhejiang, Jiangsu
**Backpack Tips:**
1. Follow the principle of placing heavy items towards the back
2. Adjust the balance straps to distribute weight evenly
3. Store heavier items in the main compartment
4. Adjust shoulder strap length and chest strap position for comfort
5. Ensure the backpack fits snugly against the back and allows free arm movement above the waistline
