TIGERNU B9881 Large Capacity Waterproof Travel Backpack with USB Charging Port

Master your daily transits, university schedules, and long-distance holiday travel with the exceptional versatility of the TIGERNU B9881 Expandable Travel Backpack. Engineered for professionals, students, and active flyers who require a highly adaptive storage layout, this smart rucksack bridges the gap between a sleek daily commuter bag and a heavy-duty hiking pack. It completely solves the classic travel issue of running out of space mid-trip, providing a modular frame that scales up on demand.

The standout hallmark of this rucksack is its innovative roll-top folding top with upward expansion paired with a premium, heavy-duty 900D waterproof nylon shell. For standard everyday commutes or lectures, the bag maintains a compact 22-litre box silhouette secured by crisp magnetic closures and robust buckles. When packing for weekend getaways or carrying extra sports gear, simply unfold the top extension to unlock up to 35 litres of spacious internal storage that adapts to your journey.

• Upward Roll-Top Expansion: Unique folding top layout that unrolls upwards to expand your packing space from 22L to 35L instantly.
• Heavy-Duty 900D Nylon: Ultra-premium, tight-weave material that offers superior wear resistance, anti-freeze properties, and total waterproof protection.
• Patented 10-Year Warranty Zip: Suspended zipper tracks designed to minimize friction wear for a smooth glide and an explosion-proof seal.
• 15.6-Inch Padded Tech Pocket: A dedicated internal computer interlayer built with shockproof padding to safely isolate your laptop or tablet.
• Twin Drawstring Side Pockets: Expandable left and right side slots fitted with custom toggles to firmly lock down large water bottles or wet umbrellas.
• Ergonomic Stabilising Straps: Features an adjustable chest buckle across arcuate mesh shoulder straps to eliminate back strain and weight shifting.

The TIGERNU B9881 fixes the common issues of large travel bags that sag awkwardly when half-empty, rip under heavy loads, or let rainwater seep through to ruin electronics. The water-repellent 900D outer skin forces sudden downpours to bead up and roll off instantly, allowing you to wipe the bag clean in seconds. Inside, an upscale 210D jacquard lining works alongside dedicated cell phone slots, internal zipper compartments, and a fast-grab front silt pocket to keep all your daily tech tools completely organized.

Weighing 1.19kg when empty, this unisex softback rucksack features a thick, breathable mesh back pad that circulates fresh air across your posture, preventing heat build-up during long walks. The dual closure system combines premium zipper tracks with a physical lock and hasp mechanism, creating a formidable barrier against opportunistic pickpockets in crowded stations. If you need a hard-wearing, secure, and incredibly spacious bag to manage your mobile workspace, this travel backpack is built to deliver.

• Brand & Model: TIGERNU T-B9881 Foldable & Expandable Tech Rucksack
• Style: Modern Urban Fashion, Roll-Top Hiking Pack & Professional Travel Backpack
• Primary Material: Water-Repellent, Scratch-Resistant High-Density 900D Nylon Fabric
• Interior Lining: Premium 210D Jacquard Protective Core
• Closure Type: Secure Zipper & Hasp Track with Magnetic Buckles + Physical Lock Integration
• Internal Packing Volume: Baseline 22 Litres that scales up to 35 Litres via upward roll-top expansion
• Device Compatibility: Cushioned independent internal interlayer safely fits laptops up to 15.6 inches
• Storage Layout: Expandable Main Vault, Laptop Compartment, Cell Phone Pocket, Interior Zipper Pocket, Two Front Pockets, and Twin Drawstring Side Pockets
• Carrying Architecture: Ergonomic Arcuate Shoulder Straps with Breathable Back Cushioning & Chest Sternum Buckle
• Product Dimensions: 45cm x 31cm x 17cm (H x L x W) (Height extends during upward expansion)
• Net Weight: 1.19kg (2.62 lbs)
• Pattern Configuration: Contemporary Patchwork / Textured Solid Finish
• Colour Palette: Classic Black and Deep Blue
• Gender Focus: Unisex-Adult (Tailored for both Men and Women)
• Origin: Mainland China