17/18 Inch Imperial Notebook Laptop Backpack Shockproof Water-Resistant Business Travel Commuter Large Capacity

39L large capacity with 8 compartments

Scientific partitioning to meet 3-5 days travel needs

Independent laptop compartment

Large main compartment for multiple clothing items

Multi-functional secondary compartment

Front zipper pocket and elastic mesh side pockets

Thickened three-material back padding for decompression and breathability

Ergonomic design to protect cervical spine and reduce shock

Breathable honeycomb design to prevent sweating in summer

Widened shoulder straps with honeycomb holes for reduced burden and reinforced load-bearing

40% lighter, 30% more breathable, and 30% better lumbar support compared to ordinary backpacks

Comprehensive product quality testing for long-lasting use

Brand zipper tested for 100,000 pulls, 3 times more expensive than ordinary zippers

Shoulder strap shock resistance tested for 8,000 cycles without deformation

Sewing strength 559N, twice the national standard

Inner pockets, zipper pockets, shoulder straps

Laptop compartment, handle, side pockets

Elastic mesh bags on both sides for water bottles or umbrellas

Adjustable shoulder straps for customized fit

Comfortable thickened handle with sponge padding for easy carrying

Recommended hand wash only, maximum washing temperature 40°C

Do not machine wash or tumble dry

Use clean water and soft cloth for wiping

For stubborn stains, use neutral or mildly alkaline detergents

Avoid bleach, alcohol-based cleaners, ironing, and direct sunlight drying

Hang to dry in a cool, shaded area