4F U421 Urban School Sports Backpack
- 4F Backpack is the perfect urban and sports backpack for both long and short trips, as well as for work or outings.
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4F U421 Backpack
- Main Material: 100% Polyamide
- Secondary Material: 100% Polyurethane
- Polyester Lining
- Adjustable Straps
- tactical Hook D-ring for attaching additional small accessories
- Main Compartment with Two-way Zipper
- Front Zipper Pocket
- Internal Compartment for Laptop or Tablet
- Internal Organizer
- Pads and Thermoregulating Mesh on the Back Support Ventilation and Cooling
- Compression Straps Allow Volume Adjustment
- Handle for Hand Carrying
- Laminated Bottom
- Hydrophobic Impregnation of the Material Slows Moisture Absorption
- AFS Ventilation System
- Dimensions: 28 x 48 cm (Width x Height)
- Capacity approx. 18 L
Hydrophobic Impregnation Coating covers the outer layer of the material, protecting it from water absorption. The coating causes moisture to condense on the surface of the fabric, which then freely flows off.
AFS Ventilation System with specially designed pads featuring thermoregulating mesh allows for free airflow and cooling of the back, while additionally stiffening the structure of the backpack.









