MARK RYDEN MR5748 Expandable Waterproof Travel Backpack with USB Charging Port

Adapt instantly to any journey and scale your storage layout seamlessly with the incredibly versatile MARK RYDEN Camp Expandable Travel Backpack. Masterfully engineered for modern outdoor adventurers, weekend travellers, and daily office commuters, this premium 22 to 32-litre transformer backpack combines a smart, variable volume with high-tech organization. It completely solves the frustration of using a loose, oversized bag for light office days, or needing to carry an extra gym bag or suitcase for overnight business trips.

The defining characteristic of this premium bag is its height-expanding roll-top transformer structure paired with a dual USB charging port. In standard city mode, it maintains a crisp, 22-litre footprint that is perfectly sized for daily transit. When you need to pack for a trip, the top expands upwards to unlock an extra 10 litres of packing space, transforming the bag into a massive travel vault. It features a built-in dual port layout that links smoothly to your power bank inside, allowing you to charge your smartphone and backup accessories at the same time while on the move.

• Expandable Height Profile: Transforms from a compact 22L city bag to a roomy 32L travel pack by extending its top section.
• Cushioned Device Bays: A safe, padded independent core designed to cradle a 15.6-inch laptop and a 10-inch tablet.
• On-the-Go Dual USB Path: Features a dual external port interface to charge your phone and power bank simultaneously.
• Tough Moisture-Proof Vinyl: Crafted from high-density, updated composite vinyl and Oxford fabric that repels rain and stains.
• Orthopaedic Air Membrane: Breathable honeycomb mesh rear cushioning shares heavy loads to ease spinal strain.
• Fast-Grab Front Pocket: Features a handy quick-access front silt pocket to keep travel passes and keys within reach.

The MARK RYDEN Camp Backpack resolves the common worry of lightweight travel packs sagging out of shape when extended, tearing at stress points, or letting sudden downpours ruin your expensive electronics. While generic sports backpacks lack structural protection, this premium alternative features a softback design that keeps its modern layout perfectly intact. Complete with wide, arcuate curved shoulder straps to ease carrying pressure and an integrated rear transit strap to slide over rolling luggage handles, it balances high-utility outdoor performance with a polished, minimalist look.

With its cabin-friendly dimensions, this unisex pack serves as an excellent airplane carry-on, fitting easily inside overhead bins or beneath the seat in front of you. It is completely free from harsh chemicals and lined with high-density, easy-to-clean protective polyester that is built to handle the rigours of everyday transit. Finished in a timeless, solid black, it keeps your mobile workspace beautifully tidy, highly secure, and impeccably sharp wherever you go.

Brand Name: MARK RYDEN (The Camp Transformer Series)

Model Number: MR5748 / MR5748SJ

Product Style: Height-Expandable Business Travel Backpack & Multi-Functional Outdoor Daypack

Internal Storage Capacity: Variable scaling between 22 Litres (City) up to 32 Litres (Fully Extended) total volume

Primary Outer Material: High-Grade Updated Moisture-Proof Vinyl / Heavy-Duty Oxford Fabric

Interior Lining Material: Smooth Protective Polyester Layer

Laptop Sleeve Protection: Padded Core Section Fitting Laptops Up to 15.6 Inches (40 x 28 x 2 cm max) + 10-Inch Tablet Slot

Connectivity Feature: Upgraded External Dual USB Charging Port Interface

Carrying Support System: Orthopaedic Air Membrane Back Panel + Arcuate Curved Shoulder Straps + Soft Handle

Travel Adaptability: Integrated Suitcase Trolley Pass-Through Strap + Fast-Grab Silt Pocket

Backpack Frame Type: Structured Softback Transformer Frame

Safety Standards: Free of High-Concern Chemicals (Certified Safe Formulation)

Product Physical Dimensions: 45cm base height (extends up to 62cm when unfolded) x 30cm x 17cm

Net Product Weight: Lightweight expandable framework at 1.200 kg (Approx. 2.6 lbs)

Available Colours: Classic Solid Black

Origin: Mainland China