
Aux Compartment
$69
Expand the carry capacity of the Errant or Arclite by 4 additional liters with Aux's quick, easy, and theft proof attachment.
Aux Compartment
$69
Lifetime Warranty
Eco Friendly
90-Day Returns
Modular Design
The AUX Compartment is a dynamic accessory that enhances the Errant’s function and external storage. Using aluminum g-hooks and an aluminum toggle, the AUX compartment attaches to the exterior front panel of the Errant. It can be used as an exterior storage compartment, compression packing cube, and side carry depending on what your travels throw at you. The front is constructed using a Ykk Stormguard® zipper for easy access and limitless protection. The top zipper leads into a well-organized interior which is perfect for storing the items you use on an everyday basis. The AUX is the perfect travel companion to store all your travel docs and makes picking up extra items on the commute a breeze.
Expandable Storage
Store an additional 4 liters of organized carry with the Aux Compartment.
Leave It All Behind
Ditch your bag and use the Aux as a small day bag with its included shoulder strap.
Internal Organization
Carry 11 inch tablets, cables, and so much more with easy interior pocketing.
Mix and Match
The Aux Compartment is compatible with the Errant, Arclite, and Arris.
Completely Stormproof
Made from water resistant materials, keep your gear dry in any storm.
Boundary partners with Bluesign® leaders to develop sustainable products without technical compromise.

500D Nylon Kodra With Barricade™ DWR

420 High Tenacity Hypalon

Expand the carry capacity of the Errant or Arclite by 4 addional liters with Aux's quick, easy, and theft proof attachment. The AUX Compartment is a dynamic accessory that enhances the Errant’s function and external storage. Using aluminum g-hooks and an aluminum toggle, the AUX compartment attaches to the exterior front panel of the Errant. It can be used as an exterior storage compartment, compression packing cube, and side carry depending on what your travels throw at you. The front is constructed using a Ykk Stormguard® zipper for easy access and limitless protection. The top zipper leads into a well-organized interior which is perfect for storing the items you use on an everyday basis. The AUX is the perfect travel companion to store all your travel docs and makes picking up extra items on the commute a breeze. Expandable Storage Store an additional 4 liters of organized carry with the Aux Compartment. Leave It All Behind Ditch your bag and use the Aux as a small day bag with its included shoulder strap. Internal Organization Carry 11 inch tablets, cables, and so much more with easy interior pocketing. Mix and Match The Aux Compartment is compatible with the Errant, Arclite, and Arris. Completely Stormproof Made from water resistant materials, keep your gear dry in any storm. Boundary partners with Bluesign® leaders to develop sustainable products without technical compromise. 500D Nylon Kodra With Barricade™ DWR 420 High Tenacity Hypalon 210 Nylon Kodra With Barricade™ DWR High Performance Stretch Mesh Water Resistant Nywool™ 3M® Reflective Trims YKK® Hypalon Zipper Pulls YKK® Stormguard Zippers

High Performance Stretch Mesh

Water Resistant Nywool™

YKK® Hypalon Zipper Pulls

YKK® Stormguard Zippers
Expandable Organization

Internal Pocketing

Aluminum G-Hooks

11" Tablet Sleeve

YKK® Stormguard Zippers

3M Reflective Details

Durable Hardware

Included Shoulder Strap
Organize Like A Pro
With multiple interal pockets, the Aux Compartment has a place for everything.
Organize Like A Pro
With multiple interal pockets, the Aux Compartment has a place for everything.
Expandable Storage
Grow your carry options by 4 liters, compatible with multiple Boundary packs.
Expandable Storage
Grow your carry options by 4 liters, compatible with multiple Boundary packs.
Perfect Companion
Great size, I can fit all my cables and some toiletries in it too.
— Blake A.
Address