TIGERNU B3905 Large Capacity Waterproof Travel Backpack with USB Charging Port

Power through long flight transits, busy city commutes, and university days with the ultra-reliable TIGERNU B3905 Laptop Backpack. Engineered for professionals, students, and frequent flyers who pack heavy but want an organised commute, this multi-sized workhorse easily handles your entire digital workspace. It takes the hassle out of carrying separate bags for travel, giving you a secure, weather-resistant base for your daily routine.

The main highlight of this rucksack is its double-layer explosion-proof anti-theft zippers combined with a built-in external USB charging port. To outsmart opportunistic pickpockets in crowded transit terminals, the puncture-resistant dual-layer zips prevent forced entry and carry a 10-year warranty. When your smartphone battery runs low on the move, you can plug your charging cable directly into the exterior port to top up your device from a power bank stored safely inside.

• Double-Layer Anti-Theft Zips: Puncture-resistant dual zipper tracks prevent forced entry and daily friction wear.
• On-The-Go USB Charging: Connect your smartphone easily to the external port while your power bank stays safe inside.
• Multi-Size Laptop Vault: Features a separate tech compartment with bottom shock-absorbing particles to cradle 15.6, 17, or 19-inch devices.
• Tough Waterproof Oxford Fabric: High-grade, anti-freeze outer material that handles rough use and forces rain to slide right off.
• 6cm Zipper Expansion: Available on the 19-inch model to instantly boost your storage volume for overnight garments.
• Secure RFID Blocking Pocket: A dedicated internal shielding pocket that blocks unauthorised scans to keep your bank cards safe.

The TIGERNU B3905 fixes the common issues of large travel rucksacks that sag awkwardly when half-empty, tear at the handle joints, or let rain water leak through to ruin your computer. The ergonomic physiological curve backing system balances the load, while the chest buckle (on 17" and 19" models) distributes weight evenly across your torso to prevent back fatigue. Complete with a hidden rear passport pocket and a built-in key chain holder, it keeps your high-value essentials sorted and secure.

With a variable capacity that spans from 20 to 55 litres depending on your selected size, this unisex daypack functions beautifully as an office bag or a full travel knapsack. The base is fitted with anti-fouling fixing pads to protect the fabric when placed on dirty terminal floors. If you want a hard-wearing, secure, and expandable backpack to protect your massive tech setup on the move, this rucksack is built to deliver.

• Brand & Model: TIGERNU T-B3905 Business Travel Backpack
• Style: Professional Casual Knapsack, Business Briefcase & Multi-Size Tech Rucksack
• Primary Material: Water-Repellent, Scratch-Resistant Coated Oxford Fabric
• Interior Lining: Smooth Protective Polyester
• Closure Type: Dual-Layer Explosion-Proof Zipper System (10-Year Warranty)
• Connectivity: Integrated External USB Port (Power bank not included)
• Carrying System: Physiological Curve Back with Honeycomb Breathable Air Cushion
• Internal Capacity Options: Available in 20-35 Litre (15.6" & 17") or 36-55 Litre (19" Expandable) sizes
• Device Compatibility: Tailored independent interlayers with shock-absorbing base particles for 15.6", 17", or 19" laptops
• Storage Layout: Main Vault, Tech Interlayer, RFID-Blocking Pocket, Hidden Back Zip Pocket, Top Fast-Access Pocket, and Silt Front Pocket
• Travel Features: Chest Buckle, Integrated Key Chain Holder, Bottom Anti-Fouling Pads, and Rear Luggage Handle Strap
• Pattern Profile: Clean Minimalist Solid Finish
• Gender Focus: Unisex Design (Tailored for both Men and Women)
• Origin: Mainland China