Est. 2014 | USA Small Business
Vertx Siege 35L | 35L Mission Loadout & Rapid Access | Water-Resistant 330D Nylon
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Return & Exchange policy:
- Summary: Don't take those sweet Instagram pics and then try to return a used item. Must be within 30 days of delivery.
- Exchanges: Realized you need a different item? That's ok! Exchanges and returns are incredibly easy.
- We are a Small Business: We do the most we can to help with return costs, but we are not Amazon and cannot take hits or losses like Amazon.
- Wrong Items: Mistakes rarely happen. Atomic Defense takes pictures of orders before they are packaged and shipped. We pay for return, recertification, and exchange shipping costs if we ever make a mistake on your orders.
- Rules for Returns: We will deduct refurbishing costs, plus materials and labor, of used products or modified products - or decline the return. This includes, but is not limited to; products with residue, smells, scratches, missing parts, debris, dents and damage. **We reserve the right to refuse returns. Refused returns shipping cost back to the buyer are not covered by Atomic Defense.
- Packaging: Ensure returns are packaged safely with thick padding on all six sides. Failure to correctly package returns may damage products and cost will be deducted from Buyer's account or return refused.
- Bulletproof products: No one else accepts returns on ballistic items. We do.** However, recertification X-Ray costs on returned ballistic items is 20%.
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Vertx Siege 35L Pack: The Ultimate High-Capacity Backpack for Tactical Gear & Rapid Weapon Access
- The Vertx Siege 35L Pack is a mission-capable loadout solution built for operators who need speed and significant storage volume. This field-proven pack combines a lightweight water-resistant exterior with a rugged mounting platform to handle demanding environments. It secures your essential gear and weapons in a profile adaptable for both overt tactical use and daily logistics.
- Carry 35+ Liters of Mission Gear: The massive main compartment provides 35 liters of space within a 22" H x 11" W x 9" D frame for multi-day excursions or heavy equipment transport. An expandable front stretch pocket allows you to stow bulky items like helmets and jackets, or you can cinch it down using adjustable side compression straps to maintain a low profile when running light.
- Resist Wear with 330D & 500D Nylon: Vertx built the main body from 330D Nylon to cut weight without losing strength, while the laser-cut 500D MOLLE panel supports heavy attachments without sagging. This construction ensures the Vertx Siege 35L Military Backpack remains water-resistant and tough enough for the daily grind.
- Deploy Weapons Instantly with Rapid Access Tabs: A loop-lined EDC compartment sits behind the front panel for immediate access to defensive tools using the Rapid Access Half-Pull tab. The main compartment and EDC slot feature YKK locking zippers to keep your sensitive equipment secure during transport.
- Transport Laptops up to 16 Inches Securely: A double-layer, loop-lined sleeve securely holds laptops up to 16 inches, measuring 16" H x 10.5" W x 0.5" D. This compartment keeps sensitive electronics separate from your tactical gear, while the removable padded waist belt and robust back padding ensure comfort during long movements.
Vertx Siege 35L Pack Review
What are some common accessories to add to the Vertx Siege 35L Pack?
Scalable Mission Profiles for the Siege Series
- Siege 15L Tactical Sling: This compact platform compliments the heavy-lift capacity of the Siege 35L Pack by offering a lightweight, high-speed alternative for short-duration operations. It allows operators to maintain the familiar Siege series organization and aesthetic in a streamlined format designed for rapid deployment and essential EDC loadouts.
- Siege 25L Tactical Backpack: Designed as the intermediate solution in the Siege ecosystem, this pack bridges the gap between the Siege 35L heavy hauler and the 15L sling. It integrates into your gear rotation as the ideal day-pack for standard 12-24 hour missions, offering significant storage without the maximum bulk of the extended-mission Vertx Siege 35L variant.

Vertx Siege 35L Pack Features & Specifications
The Vertx Siege 35L Pack is a mission-ready solution designed for operators who require maximum capacity without sacrificing speed or mobility. The Siege 35L Tactical Backpack combines a lightweight 330D Nylon exterior with a rugged 500D MOLLE mounting panel to withstand harsh field conditions while keeping your gear dry and secure. With over 35 liters of storage and a dedicated rapid-access EDC compartment, this Vertx Siege 35L Military Pack ensures you can transport essential loadouts, armor, and weaponry effectively for both daily duties and extended missions.
Key Features
- Expand Your Loadout: The Siege 35L Backpack features a 35-liter main compartment that handles large kits, while the expandable front pocket accommodates bulky items like helmets or jackets.
- Deploy Weapons Faster: A loop-lined EDC compartment sits behind the front panel for immediate access to defensive tools using the customizable Rapid Access Half-Pull tab.
- Resist Wear and Tear: Built with water-resistant 330D Nylon and a 500D laser-cut MOLLE panel, the Vertx Siege 35L Military Backpack supports heavy attachments without sagging or tearing.
- Organize Tech and Admin: The internal double-layer sleeve fits laptops up to 16 inches and includes translucent mesh pockets to keep small administrative items visible and sorted.
- Carry Heavy Loads Comfortably: A removable padded waist belt and adjustable side compression straps help distribute weight evenly during long movements with your Vertx Siege 35L Tactical Backpack.
Specifications
- Capacity: 35 Liters (plus expandable front pocket).
- Weight: 3.2 lbs.
- Outer Dimensions: 22" H x 11" W x 9" D.
- Main Compartment Dimensions: 22" H x 11" W x 7.5" D.
- CCW Compartment Dimensions: 18.5" H x 10.5" W x 1" D.
- Laptop Compatibility: Up to 16" device (16" H x 10.5" W x 0.5" D).
- Materials: 330D Nylon Exterior, 500D Laser-cut MOLLE.
- Zippers: YKK locking zippers.
- Colors Available: Coyote, It's Black, Wolf Grey.
What's in the box of the Vertx Siege 35L?
- (1) Vertx Siege 35L Pack
- (1) Removable Padded Waist Belt
- (1) Rapid Access Half-Pull Tab
Vertx Siege 35L Backpack FAQs
What does "500D" and "330D" mean?
The "D" stands for a measurement of how thick and strong the fabric is. A higher number means the fabric is thicker and tougher. This Siege 35L pack uses 330D Nylon for the main body to keep it lightweight so it is easy to carry. It uses stronger 500D material on the front panel so it can hold heavy gear without sagging or tearing.
How much stuff can I fit inside?
This pack is very big. It holds 35 liters of gear, which is enough for a long trip or a lot of equipment. The front pocket stretches out to fit large items like a helmet, boots, or a thick jacket.
Will my computer fit in this bag?
Yes. There is a special sleeve inside the main compartment that fits a laptop up to 16 inches wide. It is padded to keep your computer safe.
Can I carry a hidden weapon in this pack?
Yes. There is a hidden pocket called the "EDC compartment" right behind the front flap. It has soft lining that lets you attach a holster to hold a firearm securely where no one can see it.
Is this backpack water-resistant?
Yes. The outside is made of tough nylon that is water-resistant. This helps keep your gear dry if you are out in the rain or bad weather.
What if the pack gets too heavy?
This pack is built to be comfortable even with a heavy load. It has a padded waist belt that helps support the weight on your hips. If you don't need the belt, you can take it off.
What is the "Rapid Access" tab for?
This is a special pull tab on the zipper that helps you open the bag very quickly. You can move this tab to different zipper pockets to make it work best for how you carry your gear.
Where can I purchase the Vertx Siege 35L Pack?
You can purchase this pack directly from Atomic Defense. We currently have the Vertx Siege 35L Pack for sale and ready to ship. As an authorized dealer, we ensure that when you look for the Vertx Siege 35L Tactical Backpack for sale on our site, you receive genuine, brand-new gear backed by reliable customer support