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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: Tantrums

    Category: Running Hydration Reservoirs

    Recommended by Matthew Barrera, Trail running guide — Big Bear, Ca.

    Highlights: lightweight, comfortable

    The Crest 6 hydration pack is a lightweight and ergonomic solution for outdoor enthusiasts, designed to provide optimal hydration without the bulk of traditional vests. Weighing only 153 grams, it ensures a bounce-free experience, allowing you to focus on your performance during long runs or hikes. 1. Ultra-lightweight design at just 153 grams for maximum comfort during extended use. 2. Zero bounce technology locks the pack securely to your torso, enhancing stability during movement. 3. Includes two 600ML HydraPak flasks for easy hydration on the go. 4. Rear reservoir capacity of up to 1.5 liters, providing ample water supply for long adventures. 5. Constructed from 75% nylon and 25% mesh for durability and breathability. 6. Compatible with Salomon quiver and features pole loops for versatile carrying options. 7. Ideal for fast-paced activities like trail running, mountain biking, and ultra-marathons. The Crest 6 is designed for active individuals who engage in high-intensity outdoor activities, such as trail running, hiking, or mountain biking. It excels in warm weather conditions where lightweight and breathable gear is essential. Ideal for both novice and experienced athletes, this hydration pack is perfect for long-distance events, day hikes, or training sessions, ensuring you stay hydrated without the hassle of bulky equipment.

    Price: $225

    Expert Review

    I use this vest for longer days in the mountains and 14k summits. It’s extremely light, comfortable, and functional. Plenty of storage for you if you want to move fast through the mountains and not get weighed down by too much pack.

    Recommended by Matthew Barrera

    Frequently asked questions

    What does Matthew Barrera say about the Crest 6?

    I use this vest for longer days in the mountains and 14k summits. It’s extremely light, comfortable, and functional. Plenty of storage for you if you want to move fast through the mountains and not get weighed down by too much pack.

    Why does Matthew Barrera recommend Tantrums?

    Matthew Barrera recommends the Tantrums Crest 6 for running hydration reservoirs. I use this vest for longer days in the mountains and 14k summits. It’s extremely light, comfortable, and functional. Plenty of storage for you if you want to move fast through the mountains and not get weighed down by too much pack.

    Is the Crest 6 a good running hydration reservoir?

    Yes — Matthew Barrera recommends the Crest 6 by Tantrums as their running hydration reservoirs pick. I use this vest for longer days in the mountains and 14k summits. It’s extremely light, comfortable, and functional. Plenty of storage for you if you want to move fast through the mountains and not get weighed down by too much pack.

    Rendezvu
    Crest 6 by Tantrums — recommended by Matthew Barrera
    Nutrition & Hydration

    Crest 6

    Matthew Barrera
    Matthew BarreraRecommended in “Trail gear I actually use”
    I use this vest for longer days in the mountains and 14k summits. It’s extremely light, comfortable, and functional. Plenty of storage for you if you want to move fast through the mountains and not get weighed down by too much pack.
    Purchasing through this link directly supports Matthew
    Nutrition & Hydration

    Crest 6

    Matthew Barrera
    Matthew BarreraRecommended in “Trail gear I actually use”
    I use this vest for longer days in the mountains and 14k summits. It’s extremely light, comfortable, and functional. Plenty of storage for you if you want to move fast through the mountains and not get weighed down by too much pack.
    Purchasing through this link directly supports Matthew
    Crest 6 by Tantrums — recommended by Matthew Barrera

    This product is for…

    Runners and mountain-goers who need to carry meaningful supplies on longer efforts without being weighed down or restricted. Notes also flag it as a good fit for petite or female frames, as sizing runs true rather than skewing large like typical unisex gear.

    Worth noting…

    The updated neck construction is soft and chafe-free, and stretchy mesh pockets make on-the-move access easy. One host flags brand enthusiasm for Tantrums as a start-up, which is a personal preference rather than a product attribute.

    More from Matthew Barrera's Trail gear I actually use

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    • Adidas TERREX Terrex Agravic Speed Ultra 2 Trail Running Shoe - Men's
    • La Sportiva Prodigio Pro
    • Raide Research Men's TrailTech Short
    • Black Diamond Distance LT 1000 Headlamp
    • Squirrels Nut Butter All Products from Squirrel's Nut Butter!
    • East Peak Ice Bandana

    View Matthew Barrera's expert gear recommendations on Rendezvu