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Meet the Outdoors Expand Capacity Large Size 45L Tactical Backpack – a dynamic, China-made tactical rucksack designed for users who demand flexibility without sacrificing performance. Its standout expandable design adjusts from 36L to 55L, letting you scale storage up for large loads or down for compact carry. Crafted with waterproof materials and a rugged build, it withstands harsh weather and rough handling, while the 1.4 KG weight ensures comfortable carry during long missions or adventures. Available in black, Tan, CP, and green, it blends functionality with versatility, making it a top choice for outdoor enthusiasts and tactical users alike.

The expandable tactical backpack’s adjustable storage (36L-55L) eliminates the need for multiple bags. Whether you’re packing for a weekend camping trip or a multi-day mission, it adapts to your needs, offering just the right space without excess bulk.
Made with 900*600 PCV high elasticity waterproof material, this backpack delivers exceptional tear, abrasion, and moisture resistance. It protects internal items from rain, splashes, and damp environments, ensuring your gear stays dry and intact in any weather.
Featuring a high resilience sponge backrest and multi-point force distribution, the backpack reduces spinal strain and maintains posture. A back buffer layer lessens shoulder burden, while ergonomic shoulder straps provide even weight distribution for all-day comfort – perfect for extended hikes or missions.
This 45L waterproof tactical rucksack combines practical design with premium materials. The 900*600 PCV high elasticity waterproof material forms a robust exterior that stands up to wear and tear, while the 50*20*38 cm standard size (expandable for more space) balances portability and storage. Weighing 1.4 KG, it offers sturdiness without being cumbersome, ensuring you can carry essentials without fatigue. The structured interior and reinforced seams enhance durability, making it suitable for frequent use in demanding environments.
The expandable waterproof tactical backpack excels in diverse scenarios:
Cycling: Compact enough for agile movement, with room for water, tools, and personal items.
Mountain Climbing: Expandable capacity fits camping gear, food, and extra clothing, while waterproofing shields against mountain weather.
Daily Outdoors: Versatile for casual hikes, picnics, or commutes – expand to carry shopping or travel essentials.
Tactical Missions & Training: Durable material and adjustable storage accommodate mission supplies and tactical accessories, adapting to changing tasks.
Our commitment to customer satisfaction is at the heart of everything we do. We offer personalized support to guide you through every step of the process, from product selection to delivery. If you have any questions or need assistance, our dedicated customer service team is always here to help.
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Most tactical accessories adhere to industry-wide standards (including MOLLE), ensuring good compatibility. For precise details, check individual product descriptions to confirm fit with your existing equipment.
Clean regularly with a damp cloth. For tough stains, use mild detergent and gentle scrubbing. Avoid machine washing and tumble drying, as these can damage the waterproof coating and structural components.