Trolley Backpack with Wheels， 17.3 Inch Trolley Backpack with Large Wheels， 50L Travel Backpack with Wheels Including USB Charging Port & Combination Lock， Waterproof for Work Travel， Black

Materials & Craftsmanship
This trolley backpack is constructed from robust polyester fabric, ensuring durability and longevity for travel use. It features a solid PE plate and a water-repellent base plate with corner protectors to shield the bag from wear and impact. The large wheels are made of sturdy rubber, designed for all-terrain use. The back panel is breathable and padded for comfort, and the overall build includes reinforced stitching and adjustable buckles for a stable carry. Full Ingredient List: Polyester (fabric), Polyethylene (PE plate), Rubber (wheels), Steel (hardware), Aluminum (telescopic handle). No False Environmental Claims: No specific environmental certifications are claimed for this product.

Product Features & Usage Scenarios
• Versatile 2-in-1 design functions as both a trolley suitcase and a backpack with removable shoulder straps, adapting to various travel needs.
• Large all-terrain wheels (7.1 inches) made of sturdy rubber handle stairs, snow, and uneven surfaces with ease; integrated USB charging port for convenient device charging (power bank not included).
• Enhanced security with double zippers and combination lock protecting valuables; spacious 50L capacity with multiple compartments including dedicated laptop sleeve for up to 17.3-inch devices.

Dimensions & Specifications

Installation & Maintenance
No installation required. Shoulder straps are removable; telescopic handle is ready for use. For cleaning, wipe the surface with a soft, dry cloth. The water-repellent material can be spot-cleaned with a damp cloth if necessary; avoid harsh chemicals. Use the wheel cover to store wheels and straps when not in use to prevent dirt transfer. Ensure the bag is completely dry before storage.

Safety Warnings
USE AND SECURITY HAZARD: The combination lock provides a deterrent but does not guarantee complete security; remain vigilant with personal belongings in public areas. The USB charging port is for power delivery only; ensure your power bank complies with airline regulations. Do not exceed the recommended weight capacity for the telescopic handle and wheels. When using as a backpack, ensure shoulder straps are securely attached. Exercise caution on steep or slippery surfaces with the wheeled mode. Keep small parts and straps away from young children. This bag is water-repellent but not waterproof; protect contents from heavy rain. No declarable allergens.