Please Note: Frame and Suspension Sold Separately

Recommended size for long day hunts with extra gear and clothing, or for 2-3 night trips. The ULTRA pack line focuses on simplicity and bare-essential features to provide a truly ultralight base pack weight. KUIU’s ICON Pro and ULTRA pack lines are fully modular, any bag is compatible with any suspension.

• 1lb 2.3oz (bag only) – 3 lbs 10 oz (full kit)
• 330D HT (high tenacity) Cordura
• Spread Tow Carbon Fiber Frame (3 sizes)
• Lightweight, high performance suspension
• Customizable fit (see size chart)
Learn More About Our Modular Pack System

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SKU # 60021-OP-OS

In Stock

  • lifetime warranty on all our gear

Product Overview

New size.  New features for the ULTRA line, includes 2 stuffit pockets, 2 inside front pockets and a hydration sleeve.  Perfect size pack for 1-3 days in the field. Very light weight, good price point.

The focus of the ULTRA pack line is to minimize weight without inhibiting performance and functionality. The foundation of the system is an 11 oz., California-made Spread Tow Carbon Fiber frame that is strong and light, but provides just enough flexibility to ensure performance and comfort at normal trail weights or when packing meat. The frame is offered in three sizes to provide a custom fit over a wide range of torso lengths, while two belt sizes are available to match the users waist size (see size chart).

The ULTRA 4000 has the capacity to carry large optics and cold weather gear for later season day hunts. For the minimalist hunter, this is the perfect pack for 2-3 day bivy style hunts. When lightly loaded, the bag compresses tight to the frame for a low profile. With a main compartment full horseshoe zip, two front zippered pockets, and one stuff-it pocket, the ULTRA 4000 provides plenty of options for organizing gear. Weighs in at a remarkable full kit weight of 3 lbs 10 oz.

The KUIU Carbon Fiber frame and suspension is the foundation of our modular pack system, and can fit any of the ICON Pro or ULTRA pack bags. KUIU packs are made with materials chosen for performance, not price, including Spread Tow Carbon Fiber, CORDURA® Nylon fabric, YKK® Zippers, and Duraflex® hardware.

• Molded Spread Tow Carbon Fiber Frame (Made in USA)
• Load use tested - over 150 lb
• Additional 2500 cu in meat carrying capacity between bag and frame
• Vertical frame stiffness for weight carrying, horizontal flex for comfort
• 3 frame sizes, see sizing chart for details
• Dual density foam padded shoulder straps and waist belt (2 sizes)
• Built in T-Lock track system with hook and loop for easy torso length adjustment
• Power pulls and large break resistant waist belt buckle
• Siliconized anti-slip dots on lumbar pad keeps pack riding high on your back
• ULTRA hip belt pouches (sold separately). Convenient storage directly on your hip belt

• Quick detach bag to suspension connection hardware
• Horseshoe main compartment zipper
• 2 external front pockets
• 2 external stuffit pockets
• 2 stretch mesh zippered internal pockets
• 1 large internal mesh hydration pocket with hook
• Dedicated bottom compression straps for improved load distribution
• 4 removable accessory straps for use internally or externally
• External webbing loops for attachment of bow and rifle holders or compression straps
• Internal webbing loops for hanging a Hydration Holder or Stalker 500 Hydration Pack
• Zippered hydration port
• Key hook in front pocket

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