Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II
Flak Sack II

Flak Sack II

593 reviews
Regular price $169.00 USD Save $0.00 USD

759 in stock

The Flak Sack II is the world's toughest theft-resistant drawstring backpack. It's a backpack & a portable safe, all-in-one. Made from Flaknit, our virtually slash-proof fabric that achieves an A9 cut level, the highest there is! This lockable bag was designed to accommodate the lifestyles of people on the go who need their essentials with them, but are not able to be constantly looking after them. This bag doesn't just carry your belongings, it protects them.

  • Flaknit™ virtually slash-proof fabric achieves A9 cut level, the highest there is for slash, tear, abrasion resistance.

  • Patented double steel reinforced locking strap & heavy-duty combination lock allow you to lock the bag shut, and to a fixed object.

  • Cut resistant ropes prevent strap slashing

  • Large fleece lined interior RFID blocking pocket shields unauthorized scanning

  • Sternum Strap keeps ropes centered across chest 
    • 18" x 14" (fits Macbook Pro 13 inch)

    • Capacity: 13 litres

    • 2 lbs (includes lock)

    • Interior Pocket: 10" x 8" (can fit an iPad Mini)

    • Natural leather patch & accents

    • Designed in Columbus. Manufactured in China. Proprietary fabric design & developed in the USA.
This item is available and will ship the next business day from the purchase of date. We offer FREE standard domestic US shipping on orders over $75 and have Express & Worldwide shipping options available. We use FedEx  as our shipping carrier. For international orders, any taxes, duties, or customs fees owed are the responsibility of the customer. Please be aware of your country's customs duties before purchasing. Shipping costs are non-refundable.

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Flak Sack II

The World's Toughest Theft-Resistant
Drawstring Backpack

Watch Video

man pulling an anti-theft drawstring backpack closed

How it works


Cinch it, Pull it, Lock it, Leave it. It's that simple. This is the bag that everybody, at some point in their life, wishes they had. Elegant in its simplicity and unapologetic in its effectiveness. Sometimes you just need a safe place to put your personal items and valuables while you focus on something else.

Steel Reinforced Locking Strap

Solid Brass Combination Lock

Slash Proof Fabric - A9 Cut Level

Stab Proof Side Seams

Slash Resistant Drawstring Ropes

Secure Sternum Strap

man holding black anti theft drawstring bag
blonde woman wearing backpack in city
man wearing grey anti theft backpack on beach
man wearing anti theft backpack while hiking

Flagship Anti-Theft
Features

We scour the globe to find the best and most technologically advanced materials and manufacturers available. We compromise on nothing when it comes to quality and authenticity, and cut no corners in crafting goods built to outlive their owners.

Designed to Protect,
Built to Last


Doing the daily commute, traveling to an unknown place, hanging by the beach or at a cafe, or just finding yourself in a busy place, the Flack Sack II is ready for the challenge. This bag is the ultimate portable safe that allows you to live more and worry less.

LOCTOTE combination lock, steel reinforced straps and slash resistant ropes
STEEL REINFORCED
LOCKING STRAP

The steel reinforced locking strap and heavy-duty solid brass lock enable you to lock your sack shut, and secure to a fixed object. It's nearly impossible to cut, break or tear without extreme force or heavy tools.

SOLID COMBINATION LOCK

Lock machined from a single chunk of solid brass to ensure the security and durability of the lock. Easily set the lock to any combination you would like.

SLASH RESISTANT ROPES

Made with a slash resistant core interwoven with a highly-reflective material for night visibility. Even though we hope no thief ever tries to cut this bag off your back, it’s nice to know they won’t be successful.

RFID BLOCKING TECHNOLOGY

Protect against RFID electronic pick-pocketing. This sack has an internal pocket lined with a certified RFID blocking material to shield credit cards & passports from unauthorized scanning.

STERNUM STRAP

Gives you that extra security and comfort. By keeping the ropes centered across your chest, the bags stay secure with its weight comfortably distributed across your shoulders.

WATER RESISTANT

Our bags are lined with a water resistant nylon lining and is equipped with a large tablet-sized water-resistant interior pocket crafted with an Aquaguard zipper to keep your stuff as dry as possible.

LOCTOTE RFID blocking fabric, sternum strap, water resistant fabric

Flaknit Fabric

SLASH-PROOF (A9 CUT LEVEL)

Our slash-resistant toughness comes from the superior cut protection of Honeywell's UHMWPE Spectra fiber, the same fiber used in police vests and military gear for bullet resistance. Feel the peace of mind from knowing your belongings are protected by this stuff.

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We told you it’s good...


Customer Reviews
4.8 Based on 593 Reviews
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Filter Reviews:
AS
01/05/2021
Anthony S.
United States United States
The Best Backpack Ever?

I am only in my third day of using my new Flak Sack II(in Stealth Black, of course!), and I am absolutely loving the fit and finish of the product. For about a decade, I had been using a product made by Maxpedition, and it served it's purpose well. This new pack has that one beat all hollow!! And there is a serious "coolness" factor; I've gotten a few compliments/questions, and I have pointed all of those(soon to be happy) people in the direction of the Loctote website---prepare for more orders!

TK
01/05/2021
Tammie K.
United States United States
Fantastic

This backpack is incredible. It material feels very strong, but it's very lightweight. Great bag.

JC
12/20/2020
john c.
United States United States
Most excellent product!

Love the design, colors and materials. Great sack and weight