**Product Specifications:**
**Brand:** Cambridge Tree
**Model:** GOA-Air Orthopedic School Bag
**Material:** PU + Oxford Cloth
**Weight:** Small Size/±860g, Large Size/±920g
**Recommended Age:** 1st-6th Grade Elementary School Students
**Dimensions:**
- Small Size: 40.5cm x 37.5cm x 17.5cm
- Large Size: 42cm x 38cm x 18.5cm
**Features:**
- Six-dimensional pressure distribution design
- Dynamic pressure dispersion
- Stable and ergonomic fit
- Shock-absorbing support
- Hollow back support
- S-shaped shoulder straps
- Cloud-like high elasticity pressure dispersion structure
- Adjustable mountain-grade chest buckle
- Detachable ergonomic waist wings
- U-shaped back cushion with EVA shock-absorbing layer
- Four elastic bands for slow rebound shock absorption
- Adjustable sliders for various body types
- Expandable accordion-style opening
- Sealed pockets and water bottle holder
- Water-repellent fabric with safety certifications
- Breathable and sweat-wicking design
- Multiple color options available
**Certifications:** SGS, Certificate 9, GR, SMQ MA
**Additional Information:**
- Innovative patented design with over 40 patents
- Ergonomically engineered to prevent back strain and promote proper posture
- Lightweight and durable construction
- Reinforced anti-wear corners
- Smooth and secure zipper closures
*Note: Backpack dimensions are manually measured and may have a tolerance of up to +1cm.*