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    Rendezvu
    On a mission to get more people to enjoy the outdoors© 2026
    RendezvuAboutFor HostsFor BrandsFor Shoppers
    LegalTermsPrivacy
    ResourcesDocsContactFeedback
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    Brand: UltrAspire

    Category: Running Headlamps

    Recommended by Jeff Garmire, Athlete — Montana

    The Lumen 850 Duo Waist Light is a cutting-edge illumination solution designed for outdoor enthusiasts, offering exceptional brightness and versatility in a lightweight, durable package. With its advanced features and user-friendly design, it ensures a safe and enjoyable experience in low-light conditions. 1. Constructed from aircraft-grade aluminum for superior durability and lightweight performance. 2. Equipped with a USB Type-C charging port, allowing for quick and convenient recharging with the included cable. 3. Offers multiple brightness modes including low, medium, high, and blinking for customizable lighting based on your needs. 4. Features a breathable mesh design and a conical belt that provides a comfortable, secure fit for waist sizes ranging from 26" to 38". 5. IPX7 waterproof rating ensures reliable performance in wet conditions, making it ideal for various outdoor activities. 6. Illuminated battery light indicator keeps you informed about remaining power, preventing unexpected outages. 7. Adjustable angle allows you to direct light precisely where needed, enhancing visibility while maintaining a natural posture. The Lumen 850 Duo Waist Light is perfect for runners, hikers, and outdoor adventurers who require reliable lighting during early morning or late evening excursions. It excels in environments such as trails, parks, and urban settings where visibility is crucial. Ideal for users of all skill levels, this waist light is particularly beneficial in low-light conditions and during inclement weather, ensuring safety and comfort throughout your activities.

    Price: $169.95

    Expert Review

    So bright it’s going to feel like daytime all night long. Also, the fog gets pretty thick and the waistlight is closer to the ground.

    Recommended by Jeff Garmire

    Frequently asked questions

    What does Jeff Garmire say about the Lumen 850 Duo Waist Light?

    So bright it’s going to feel like daytime all night long. Also, the fog gets pretty thick and the waistlight is closer to the ground.

    Why does Jeff Garmire recommend UltrAspire?

    Jeff Garmire recommends the UltrAspire Lumen 850 Duo Waist Light for running headlamps. So bright it’s going to feel like daytime all night long. Also, the fog gets pretty thick and the waistlight is closer to the ground.

    Is the Lumen 850 Duo Waist Light a good running headlamp?

    Yes — Jeff Garmire recommends the Lumen 850 Duo Waist Light by UltrAspire as their running headlamps pick. So bright it’s going to feel like daytime all night long. Also, the fog gets pretty thick and the waistlight is closer to the ground.

    Rendezvu
    Lumen 850 Duo Waist Light by UltrAspire — recommended by Jeff Garmire
    Wearables

    Lumen 850 Duo Waist Light

    Jeff Garmire
    Jeff GarmireRecommended in “ZUT 100 Kit”
    So bright it’s going to feel like daytime all night long. Also, the fog gets pretty thick and the waistlight is closer to the ground.
    Purchasing through this link directly supports Jeff
    Wearables

    Lumen 850 Duo Waist Light

    Jeff Garmire
    Jeff GarmireRecommended in “ZUT 100 Kit”
    So bright it’s going to feel like daytime all night long. Also, the fog gets pretty thick and the waistlight is closer to the ground.
    Purchasing through this link directly supports Jeff
    Lumen 850 Duo Waist Light by UltrAspire — recommended by Jeff Garmire

    This product is for…

    Trail and ultra runners who run at night, especially those prone to headaches from headlamps or who struggle with night vision. Pairs naturally with UltrAspire's Mountain Racer belt for an integrated carry setup.

    Worth noting…

    The wide front band is flagged as key to comfort — prevents stomach pressure during long efforts and keeps the light stable. Battery is rechargeable and noted as swappable on the move.

    More from Jeff Garmire's ZUT 100 Kit

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    • Janji M's Trekker Snappy Shirt
    • Coros Vertix 2S
    • XOSKIN XOTOES (Toe Sock) Quarter Crew by XOSKIN
    • Janji M's 7" AFO Middle Short Ultra
    • UltrAspire Legacy 3.0 Race Vest + 2 Liter Reservoir
    • Janji M's Zephyrunner Wind Shell

    View Jeff Garmire's expert gear recommendations on Rendezvu