UltrAspire Lightning Waist Pack

The Lightning Waist Pack is a streamlined, high-performance 2-liter belt engineered for long-distance efforts where efficiency and durability matter. Built with our EnduraMesh LT™, an ultralight 80% nylon / 20% UHMWPE blend featuring fibers stronger than steel, it offers exceptional abrasion resistance without added bulk.

Designed on our ErgoFit Waist™ foundation, its conical shape (wider at the bottom, narrower at the top) allows the belt to sit naturally on the hips with minimal movement. Six total pockets provide intuitive access: a front zip pocket for essentials, a rear quick-grab pocket behind the light-mount area, and a large main compartment that houses the included 625 mL Softflask with a low-profile 28mm locking cap to reduce body contact and prevent leaks.

Compatible with the UltrAspire Light Bracket for seamless use with the Lumen 600 5.0, Lumen 850 Duo, or Lumen 400z 3.0, the Lightning also features a toggle-controlled compression system to stabilize your load. Dedicated rear Z-pole attachments provide optional trekking-pole carry when the terrain demands it. It’s the ideal companion to larger packs like the Zygos 6.0, Traverse, or Purist. Available in three sizes. Includes a 625 mL Softflask. Light Bracket not included.

Available in three sizes for a secure fit. Sizing is based on waist measurements. Small (28–32″), Medium (29–33″), Large (31–36″)

Recommended Use:
The Lightning is ideal for runners who want a lightweight, streamlined waist pack for long training runs, mountain races, or fast efforts where stable hydration, quick-access storage, and low-bulk performance are essential.

Details:

• Lightweight High-Performance Waist Pack Design
• Built with EnduraMesh LT™ for Exceptional Durability
• ErgoFit Waist™ Conical Fit for Reduced Movement
• 6 Total Storage Pockets
• Large Main Compartment with Included 625mL SoftFlask
• Low-Profile 28mm Locking Cap Reduces Body Contact
• Rear Quick-Access Storage Pocket
• Front Zippered Essentials Pocket
• Toggle-Controlled Compression System for Load Stability
• UltrAspire Light Bracket Compatible (Not included)
• Compatible with Lumen 600 5.0, Lumen 850 Duo & Lumen 400z 3.0
• Dedicated Rear Z-Pole Attachments
• Lightweight, Stable Carry for Long-Distance Efforts
• Available in 3 Sizes Small (28–32″), Medium (31–34″), Large (33–37″)
• Includes 625mL SoftFlask w/ Locking Cap

Fit: Unisex
Size: Available in three sizes for a secure fit. Sizing is based on waist measurements. Small (28–32″), Medium (29–33″), Large (31–36″)
Color options: Pitch Black
Hydration (Included)- 1x 625 mL Softflask with Locking Cap

Does Not Include: Light Bracket

Capacity: 122 c.i. (2L)
Weight: 5.8 oz (165g)