Dijiuchengbao Floating Weight Reduction Backpack for Primary School Boys Grades 1-3 Lightweight Spine

**Product Specifications:**

**Brand:** The Ninth Castle ()

**Model:** CDS62923, CDS63923

**Weight:** 1.1kg/1.15KG

**Target Age Group:** Grades 1-6

**Material:** Fabric/Synthetic Leather

**Colors:** Baby Blue Red, Baby Blue Green

**Inner Structure:** 1 main compartment, 1 book layer, 1 book clip layer with elastic band, 1 movable bottom board, 1 timetable

**Outer Structure:** 1 secondary compartment, 2 front zip pockets, 1 side zip pocket, 1 side mesh pocket

**Customized Antibacterial Lining:** Inhibits bacterial growth, with a 99% inhibition rate against E. coli and Staphylococcus aureus

**Certifications:** Endorsed by the Hong Kong Children's Spine Health Association (CCAHK), endorsed by Dr. Hong Pan, a pediatric spine specialist

**Capacity:**

- 20L: Recommended for ages 6-9, suitable for heights 100-130cm

- 26L: Recommended for ages 8-12, suitable for heights 120-160cm

**Dimensions:**

- 20L: 380mm x 280mm x 160mm

- 26L: 410mm x 300mm x 180mm

**Features:**

- Dynamic Suspension Weight Reduction System

- Ergonomic design following human body mechanics

- Multiple compartments for easy organization

- Water-resistant and durable materials

- Reflective strips for safety

- Adjustable and cushioned shoulder straps

- Breathable and antibacterial lining

- Anti-slip chest buckle and bottom support

- Impact-absorbing sponge and ventilation design

- Wide and comfortable carrying handles

- Reinforced structure for better weight distribution and spine protection

The Ninth Castle backpacks are designed to provide children with a comfortable and ergonomic carrying experience, endorsed by experts in pediatric spine health. With innovative features such as the Dynamic Suspension Weight Reduction System and customized antibacterial lining, these backpacks prioritize both functionality and safety for children's spinal health and overall well-being.