Product Overview
The WATERFLY Lightweight Packable Hiking Backpack is a versatile, high-performance daypack engineered for outdoor adventurers and urban explorers alike. Crafted from premium tear-resistant and water-resistant nylon, this 30L foldable backpack combines durability with ultralight convenience—weighing just 420g. Its innovative packable design allows it to compress into a compact size of 7.5 x 7.9 x 1.97 inches, making it perfect for travel, emergency storage, or as a space-saving backup bag. Whether you’re heading out for a day hike, weekend camping trip, or daily errands, this backpack delivers reliable organization and comfort in a streamlined package.
Key Features
- Ultralight & Space-Saving Design: At only 420 grams, the backpack is exceptionally lightweight while maintaining structural integrity. When not in use, it folds down to a mere sandwich size of 7.5 x 7.9 x 1.97 inches, fitting easily into luggage, gym bags, or even large pockets. Unfolded, it expands to 19.3 x 12.5 x 8.6 inches, offering generous 30-liter capacity for essentials.
- Rugged, Water-Resistant Construction: Built with high-grade nylon that resists tears and moisture, the backpack withstands daily wear and unpredictable weather. Reinforced stitching at high-stress areas—such as strap anchors and zipper pulls—ensures long-term durability, while heavy-duty SBS zippers provide smooth, reliable operation over countless uses.
- Thoughtful Multi-Zone Organization: Designed for efficient packing, the backpack features multiple compartments: a spacious main compartment, a front zippered pocket for quick access, two external side pockets ideal for water bottles or umbrellas, and a hidden pouch for valuables or sensitive items like passports and keys.
- Built-In Cable Hole & Internal Pocket: A convenient cable hole on the side allows easy routing for charging cables when using a power bank inside. The internal pocket near this opening helps secure small electronics, ensuring your devices stay organized and protected during movement.
- Integrated Wet Pocket: One of the standout features is the waterproof wet pocket inside the main compartment. Accessed via an external zipper on the back, this sealed section keeps damp clothes, swimwear, towels, or workout gear separate from dry items—ideal after swimming, beach visits, or intense physical activity.
- Ergonomic Comfort System: S-shaped shoulder straps are contoured for all-day comfort and feature breathable mesh fabric to wick away sweat and reduce heat buildup. An adjustable chest buckle lets users customize fit across different torso lengths, distributing weight evenly and minimizing fatigue during extended wear.
- Extreme Cold Performance: Side buckles are rated to function reliably in temperatures as low as -40°C, making this backpack suitable for winter expeditions, alpine hikes, or cold-weather travel without risk of component failure.
Technical Specifications
- Unfolded Dimensions: 19.3 x 12.5 x 8.6 inches (49 x 32 x 22 cm)
- Folded Dimensions: 7.5 x 7.9 x 1.97 inches (19 x 20 x 5 cm)
- Weight: 420 grams (0.93 lbs)
- Material: Tear-resistant, water-resistant nylon
- Zipper Type: Durable SBS metal zippers with reinforced slider heads
- Buckle Temperature Rating: Operational down to -40°C (-40°F)
- Capacity: 30 liters (1,830 cubic inches)
- Compartments & Pockets: Main compartment, front zip pocket, two side mesh pockets, hidden interior pouch, internal wet/dry separation pocket
Benefits & Use Cases
This backpack seamlessly transitions between outdoor adventures and everyday life. For hikers and campers, its 30L capacity accommodates hydration systems, trail snacks, first-aid kits, and layered clothing for unpredictable mountain weather. Travelers appreciate how quickly it unfolds from its compact form into a full-sized daypack—perfect for exploring cities, carrying souvenirs, or serving as an overflow bag during vacations. The wet pocket adds practical value for swimmers, surfers, or fitness enthusiasts who need to manage damp gear without contaminating other belongings.
In urban environments, the backpack excels as a gym bag, commuter carryall, or shopping companion. Its lightweight build means no extra strain during long walks, while the breathable shoulder straps ensure comfort whether worn over light jackets or raincoats. The hidden pouch offers discreet storage for wallets or phones, enhancing security in crowded spaces.
Because of its neutral design and gender-inclusive sizing, the WATERFLY backpack suits both men and women equally well. It’s also an excellent gift choice—functional yet thoughtful, especially for those who enjoy spontaneous trips, outdoor sports, or simply value well-designed everyday tools.
Important Notes
While constructed with water-resistant material, the backpack is not fully waterproof. For protection against heavy rain or submersion (e.g., kayaking or river crossings), consider pairing it with a dry bag liner or rain cover. Regularly inspect zippers and seams for signs of wear to maintain optimal performance. This product is intended primarily for day use and light-to-moderate outdoor activities. Always test fit and adjust straps before embarking on longer excursions to ensure maximum comfort and stability.

















