Built for Loadouts.

RUX Packing Cube 10L Ultra

The organizer for structured carry inside your RUX system. Available now to RUX Members.

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RUX Packing Cube 10L Ultra

$65 USD

A versatile middleweight cube designed for layered organization inside your loadout.

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RUX Packing Cube 10L Ultra

$65 USD

A versatile middleweight cube designed for layered organization inside your loadout.

A versatile middleweight cube designed for layered organization inside your loadout.

Whether you're packing warm layers, climbing gear, or ice tools, the 10L Ultra Cube keeps it all in check. Ideal for segmenting your kit—think gloves, jackets, crampons, or even a rope + sling combo. Light enough to bring anywhere, tough enough to handle it all. Fits seamlessly inside RUX gear boxes, tote bags, or works standalone.

Please note: This product is part of a one-time, member-only drop with very limited inventory. RUX Members have first (and only) access. When they’re gone, they’re gone.

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Ships Out Next Day

Lifetime Warranty

30 Day Return

Whether you're packing warm layers, climbing gear, or ice tools, the 10L Ultra Cube keeps it all in check. Ideal for segmenting your kit—think gloves, jackets, crampons, or even a rope + sling combo. Light enough to bring anywhere, tough enough to handle it all. Fits seamlessly inside RUX gear boxes, tote bags, or works standalone.

Please note: This product is part of a one-time, member-only drop with very limited inventory. RUX Members have first (and only) access. When they’re gone, they’re gone.

  • Capacity: 10L
  • Material: TX50 Ultra™
  • Dimensions: 8.5 x 7.1 x 13 inches / 21.5 x 18 x 33 cm
  • Weight: 4.2 oz, 120g

Materials: Entire system made with TX50 Ultra™

Fabric traits:

  • Ultralight
  • Waterproof
  • High tear strength
  • Triple ripstop + PET film backing

Part of Challenge’s Ultra™ series, noted for sustainability and extreme performance

Our First-Ever Member-Only Product

The RUX Packing System Ultra marks a new chapter—our first exclusive release for the RUX Member community. Built with next-gen materials and crafted in limited numbers, it's a system that rewards those who pack smarter, go further, and expect more from their gear.

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Pack Smarter, Travel Lighter

Why You'll Want It

Your gear deserves more than a stuff sack. This system was designed to simplify your loadout, protect your essentials, and make the most of every liter. Whether you're overlanding, traveling, or hitting the trail, the Ultra setup delivers all the function with none of the drag.

  • All-Ultra Build: Constructed entirely from TX50 Ultra™—a 3-layer waterproof fabric that punches way above its weight.
  • Streamlined Packing: Everything fits inside your RUX 70L or 40L. Minimalist design, maximum utility.
  • Built to Organize: Clip, lash, and stack your system however you pack. Your setup, dialed.
  • Tough, Not Bulky: Durable, tear-resistant, and abrasion-tested—without the bulk of traditional gear bags.

Materials That Work as Hard as You Do

What is TX50 Ultra™?

A high-performance, ultralight fabric engineered by Challenge Outdoor. TX50 Ultra™ uses a triple ripstop polyester with Ultra™ CrossPly and a PET film backing for waterproof, long-haul performance.

  • 100% waterproof construction
  • Lightweight but incredibly strong
  • Made to handle real-world abuse without flinching