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80L/100L Tactical Hiking Backpack - Military Rucksack | BGB
80L/100L Tactical Hiking Backpack - Military Rucksack | BGB
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80L/100L Tactical Military Hiking Backpack | Waterproof & Molle Ready
Gear up for your next 3-day assault or long-distance trek with the Big Green Bear Tactical Expedition Rucksack. Engineered from high-density 600D Oxford fabric, this backpack is built to survive the harshest environments. Whether you’re summiting a peak, embarking on a hunting trip, or prepping your bug-out bag, this high-capacity knapsack offers the durability and organization you need.
Key Features
- Massive 80L/100L Capacity: A cavernous main compartment with a secure drawstring closure fits bulky gear like sleeping bags, tents, and multi-day clothing.
- Military-Grade Durability: Crafted with scratch-resistant 600D waterproof fabric and double-reinforced stress points for maximum load-bearing strength.
- Molle Expansion System: Fully compatible with external tactical pouches and gear. Use the integrated D-rings for carabiners, water bottles, and mission-essential tools.
- Ergonomic Comfort: Features 2cm thick foam padding and breathable mesh straps to relieve back pressure and provide superior support during long-term travel.
- Smart Organization: Includes 3 quick-access zippered pockets for essentials and dual side pockets for umbrellas or large water bottles.
- Heavy-Duty Hardware: Equipped with high-quality metal zippers designed for smooth, long-term use in the field.
Technical Specifications
- Dimensions: 25.6" x 13.4" x 6.7"
- Weight: Ultra-lightweight at 1.4 kg (3.1 lbs)
- Material: 600D High-Density Oxford / Waterproof Coating
- Care: Hand Wash Only (To preserve waterproof integrity)
- Best For: Hiking, Tactical Assault, Camping, Climbing, and Military Trekking.
1. 80L/100L Tactical Backpack
Inside your package:
- 1x Expedition Tactical Rucksack (80L or 100L capacity based on your selection).
- Detachable Components: Integrated Molle-compatible straps and reinforced D-rings.
- Care & Setup Guide: Quick tips for adjusting ergonomic straps for the perfect load-bearing fit.
To keep your Big Green Bear Tactical Rucksack in mission-ready condition, follow these specialized care steps. Since this bag uses a technical 600D Oxford fabric with a waterproof coating, proper maintenance is key to its longevity.
- Hand Wash Only: Never machine wash. The agitation can break down the waterproof lining and weaken the double-reinforced stitching.
- Spot Cleaning: Use a soft-bristled brush (like an old toothbrush) and mild detergent to scrub away mud, salt, or grit from the 600D fabric.
- Zipper Maintenance: Periodically clear the metal zippers of sand or dirt. If they become stiff, apply a tiny bit of paraffin wax or specialized zipper lubricant to keep them gliding smoothly.
- Air Dry in Shade: Hang the backpack upside down in a well-ventilated area. Avoid direct sunlight or radiators, as extreme heat can cause the waterproof coating to peel or crack.
- Storage: Ensure the pack is 100% dry before storing it to prevent mold and mildew. Store in a cool, dry place away from damp concrete floors.
Built for the Wild. Backed by Big Green Bear
Don't let a flimsy bag hold you back from your next adventure. Upgrade to a tactical pack that is as rugged as the terrain you're covering. At Big Green Bear, we don't just sell gear; we provide reliability.
Frequently Asked Questions (FAQ) – 80L/100L Tactical Backpack
Q: How much weight can this backpack realistically hold?
A: Thanks to the 600D high-density Oxford fabric and double-reinforced stress points, this pack is designed to carry heavy loads up to 50–60 lbs comfortably. The 2cm thick padded straps help distribute that weight to prevent shoulder strain.
Q: Is the 80L/100L size considered "carry-on" compliant for flights?
A: Typically, no. When fully loaded, an 80L or 100L pack exceeds standard carry-on dimensions. It is best suited as checked luggage or for overland travel, camping, and trekking expeditions.
Q: Is the backpack completely waterproof?
A: It is highly water-resistant. The 600D fabric and internal coating will protect your gear against heavy rain and splashes. However, it is not submersible; for river crossings or extreme downpours, we recommend using an internal dry bag or external rain cover.
Q: What is the "Molle System" and how do I use it?
A: The Molle (Modular Lightweight Load-carrying Equipment) system consists of heavy-duty nylon webbing stitched onto the front and sides. It allows you to securely "weave" on extra pouches, med-kits, knife sheaths, or water bottle holders to customize your storage.
Q: Can it fit a hydration bladder?
A: Yes! The large main compartment can easily accommodate a hydration bladder, and the adjustable straps allow you to route the drinking tube for easy access while hiking.
Q: Does it have a frame for back support?
A: This is a high-capacity internal-structure rucksack. While it doesn't have a bulky external metal frame, it uses high-density foam backing and ergonomic reinforcement to provide rigid support while remaining lightweight and flexible.
Q: What if I don't like it once it arrives?
A: No worries! We offer a 30-Day Money-Back Guarantee. If the pack doesn't meet your expectations for size or durability, just contact us for an easy, hassle-free return.

