Haley Strategic Partners | SKU: RSR-HSPFPP-1-1-MC

Haley Strategic - FlatPack Plus Expandable Assault Backpack

$213⁴⁹

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Description

The Haley Strategic FlatPack Plus is a mission-adaptable, expandable backpack engineered to bridge the gap between a low-profile assaulter pack and a full-capacity day pack. Designed for direct integration with plate carriers and chest rigs, the FlatPack Plus delivers unmatched modularity, durability, and scalability for professional end users and prepared civilians alike.

The signature zippered expansion system allows the pack to remain nearly flat when compressed, then expand up to 150% additional storage capacity when needed—making it ideal for dynamic loadouts, sustainment gear, or extended operations.

Made in the USA from USA-sourced materials, the FlatPack Plus is Berry Compliant and built using MIL-SPEC fabrics, hardware, and construction techniques for hard use in demanding environments.

Expandable Main Compartment – Full peel-open design for rapid access and visual identification of gear
VELCRO® Loop Interior Panels – Supports FlatPack Organization Accessories (sold separately)
Hydration / Armor Compartment – Accepts 1-liter hydration bladders or FlatPack Plus Level IIIA armor inserts (sold separately)
Multiple Storage Zones – Secondary full-depth compartment and lower admin pocket for small essentials
MOLLE/PALS Rear Panel – Direct attachment to plate carriers, sustainment packs, or piggyback systems
Chest Rig Integration – Designed to integrate with all Haley Strategic chest rigs and placards
Comfort & Stability – Includes chest strap, comms/hydration routing loops, and drainage grommets

The FlatPack Plus ships with removable shoulder straps and side straps, allowing it to be worn as a standalone backpack or mounted directly to compatible Haley Strategic chest rigs and plate carriers. Optional back pads and shoulder pads can be added for enhanced comfort under heavier loads.

Although purpose-built for Special Operations and professional users, the FlatPack Plus also excels as an everyday carry or preparedness pack, capable of carrying laptops or tablets up to 14 inches.

Included:

(1) FlatPack Plus
(2) FlatPack Shoulder Straps
(2) FlatPack Side Straps

Specifications:

Total Storage Volume (Expanded): 18.3 Liters
Main Compartment (Compressed): 14” x 10” x 2”
Main Compartment (Expanded): 14” x 10” x 6”
Hydration/Armor Compartment: 14” x 10” x 0.5”
Second Compartment: 14” x 10” x 1”
Admin Compartment (Expanded): 7” x 10” x 2”
Weight: 24.1 oz

Construction:

MIL-SPEC 500D / 1000D Nylon Laminate
MIL-SPEC Nylon Webbing and Elastic
VELCRO® Brand Loop
YKK Zippers with Elastomer Pull Tabs
Anti-Slip 1” Buckles

Available Colors: Black, Coyote Brown, Ranger Green, MultiCam, MultiCam Black

Care Instructions: Hand wash with warm water and a soft brush. Air dry indoors away from direct sunlight. Do not machine wash, dry, or dry clean.

California Proposition 65 Warning: This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm.

Choosing Between the FlatPack and FlatPack Plus: The Haley Strategic FlatPack and FlatPack Plus share the same low-profile, plate carrier–integrated design, but differ primarily in capacity and scalability. The standard FlatPack is optimized for minimalist, mission-essential carry and short-duration use, maintaining an ultra-slim profile ideal for lightweight chest rig or plate carrier setups. The FlatPack Plus builds on this foundation with a larger base capacity and an expandable main compartment (up to approximately 18.3 liters), making it better suited for heavier or evolving loadouts, hydration or armor inserts, and extended use. While both packs integrate seamlessly with Haley Strategic chest rigs and placards, the FlatPack Plus offers greater versatility for sustainment gear, preparedness kits, and civilian everyday use—including the ability to carry laptops or tablets up to 14 inches.

FlatPack: Minimalist, ultra-low profile, best for short missions and light carry
FlatPack Plus: Larger, expandable, better for extended missions, heavier loads, and everyday use

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Frequently Asked Questions

How does the expandable feature of the FlatPack Plus benefit users in tactical scenarios?

The expandable feature of the FlatPack Plus allows users to adjust the pack's capacity based on mission requirements. This adaptability is crucial in tactical scenarios where the need for additional gear can change rapidly. The pack can expand up to 150% of its compressed size, offering ample space for sustainment gear or additional equipment. This feature ensures that users can carry more without needing a separate larger pack, maintaining a streamlined profile when not fully loaded.

What makes the FlatPack Plus suitable for integration with plate carriers and chest rigs?

The FlatPack Plus is designed with a MOLLE/PALS rear panel that allows for direct attachment to plate carriers and chest rigs. This integration capability is ideal for tactical operations, as it enables seamless transitions between different configurations. The pack's design ensures stability and comfort, even when loaded, by distributing weight evenly across the user's body. This feature is particularly beneficial for professionals who require quick access to their gear without compromising mobility.

Can the FlatPack Plus be used for everyday carry purposes?

Yes, the FlatPack Plus is versatile enough to be used as an everyday carry pack. Its expandable capacity and multiple compartments make it suitable for carrying laptops or tablets up to 14 inches, along with other daily essentials. The pack's low-profile design ensures it remains unobtrusive, while its durable construction can withstand the rigors of daily use. This makes it an excellent choice for those who need a reliable and adaptable pack for both professional and personal use.

What are the care instructions for maintaining the FlatPack Plus?

To maintain the FlatPack Plus, it should be hand washed with warm water and a soft brush. It's important to air dry the pack indoors away from direct sunlight to preserve its materials. Avoid machine washing, drying, or dry cleaning, as these methods can damage the pack's construction. Regular maintenance will ensure the longevity and performance of the pack, especially in demanding environments.

How does the FlatPack Plus accommodate hydration systems?

The FlatPack Plus includes a dedicated hydration compartment that can accommodate 1-liter hydration bladders. This feature is essential for maintaining hydration during extended operations or outdoor activities. The compartment is designed to keep the bladder secure and separate from other gear, preventing leaks or spills. Additionally, the pack includes comms/hydration routing loops to facilitate easy access to the hydration tube while on the move.

What are the benefits of the VELCRO® Loop Interior Panels in the FlatPack Plus?

The VELCRO® Loop Interior Panels in the FlatPack Plus enhance organization by allowing users to customize their loadout. These panels support the use of FlatPack Organization Accessories, which can be arranged to suit specific needs. This feature is particularly useful for users who require quick access to specific items, as it prevents gear from shifting during movement. The ability to personalize the interior layout makes the pack adaptable to a variety of missions and everyday scenarios.

What materials are used in the construction of the FlatPack Plus?

The FlatPack Plus is constructed from MIL-SPEC 500D and 1000D Nylon Laminate, ensuring durability and resistance to wear. The use of MIL-SPEC materials, hardware, and construction techniques ensures the pack can withstand harsh conditions and demanding use. This makes it suitable for both professional tactical environments and rugged outdoor activities, providing reliability when it matters most.

How does the FlatPack Plus compare to the standard FlatPack in terms of capacity?

The FlatPack Plus offers a larger base capacity and an expandable main compartment compared to the standard FlatPack. While the standard FlatPack is optimized for minimalist, short-duration use, the FlatPack Plus can expand to accommodate up to 18.3 liters, making it more suitable for extended missions and heavier loadouts. This increased capacity allows for greater versatility, whether carrying additional tactical gear or using it as a preparedness pack for civilian use.

What are the tradeoffs of using the FlatPack Plus for extended missions?

While the FlatPack Plus offers significant storage capacity and modularity, users should consider the weight and bulk of a fully loaded pack. Extended missions may require carrying additional gear, which can increase the pack's weight and affect mobility. It's important to balance the need for equipment with the ability to move efficiently. Users should also consider the integration of optional back and shoulder pads to enhance comfort when carrying heavier loads over long periods.

What optional accessories can enhance the functionality of the FlatPack Plus?

Optional accessories such as back pads, shoulder pads, and FlatPack Organization Accessories can enhance the functionality of the FlatPack Plus. These additions provide extra comfort and organization, especially when carrying heavier loads. The organization accessories allow users to customize the interior layout, ensuring that essential items are easily accessible. These enhancements make the pack more adaptable to various missions and everyday tasks, improving overall user experience.

Haley Strategic - FlatPack Plus Expandable Assault Backpack