KALA·Y Large Capacity Five-Dimensional Load-Reducing Spine Protection Backpack for Middle and High… Vairāk

Product Specifications Brand: KALA·Y Product Name: KALA·Y Anti-Sagging Load-Reducing Accordion Backpack (Shiguang Series) Recommended Height & Size: Stage 3 (Rapid Growth Period): Height 150-175 cm, Capacity 26.2L, Dimensions 290mm (W) x 430mm (H) x 210mm (D), Recommended for middle and high school students Stage 4 (Mature Period): Height 165 cm and above, Capacity 30.2L, Dimensions 305mm (W) x 450mm (H) x 220mm (D), Recommended for middle school to university students Additional sizes: Small size for height ~158 cm, Large size for height ~182 cm Weight: Net weight varies slightly by batch; manual measurement tolerance ±1-2 cm Material: A-grade fabric compliant with GB/T 26158-2010 "Chinese Minor Human Body Dimension Standard" Phthalate-free, formaldehyde-free, no detectable harmful aromatic amines or heavy metals Double antibacterial lining with 99% inhibition rate against Staphylococcus aureus and Escherichia coli Design Features: Accordion-style expandable structure for easy compression and storage Large capacity suitable for 15.6-inch laptops, iPads, wallets, water bottles, umbrellas Multiple compartments: main large compartment, front upper pocket for small items, inner pocket for books with rear-centered weight distribution, front zipper pocket, front lower pocket for extra storage, elastic side pockets for water bottles and umbrellas H-shaped shock-absorbing load reduction system with 250g sandwich padding and 2.5cm high-elastic memory foam for enhanced comfort and anti-sagging Ergonomic U-shaped shoulder straps with widened contact area and vest-style neck fit Adjustable chest strap for height adaptability Rainbow webbing and anti-slip buckle to fix backpack position under 40kg load without shifting Balanced left-right force distribution to prevent sagging Safety & Quality: Meets "General Safety Requirements for Student Supplies" Eleven safety tests passed including no detection of phthalates, formaldehyde, carcinogenic aromatic amines, and heavy metals Antibacterial lining tested and certified (Test Report No. 250242400) Colors Available: Ivory White Lavender Purple Legendary Blue Piano Black Model Height Examples: Small size: 158 cm, 164 cm Large size: 165 cm, 182 cm Product Codes: Small size: CX5573 Large size: CX5573L Warranty & Service: 2-year quality guarantee 30-day return and exchange policy Manufactured by KALA·Y Group, Jiangsu Factory (30 years of manufacturing experience) Note: All dimensions are manually measured; a deviation of 1-2 cm is within reasonable range. Net weight may vary slightly by production batch.