CamelBak Zephyr Pro 11L Vest With 2 X 500ml Quick Stow Flasks

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A breathable, race-ready vest that’s been built for efficiency, with smart storage and a snug, stable fit.

Camelbak says: 

When you need unmatched performance for ultralong-distance races with demanding gear requirements, the Zephyr™ Pro Vest will have you equipped with hydration, nutrition, and other essentials to see you through to the finish line.

Our Verdict

Built with long-distance trail running in mind, the CamelBak Zephyr Pro 11L Vest delivers comfort, thoughtful storage, and smart updates that make a difference over long miles. Weighing around 270g with the trekking pole quiver included, it comes with two 500ml Quick Stow flasks and enough capacity to carry food, fluids, and extras for extended outings.

The front flask pockets include elastic loops to hold bottles higher as they empty, which really improves access mid-run. There’s also a secure phone pocket, well-placed chest pockets, and a roomy rear stretch compartment. The engineered knit mesh back panel uses body-mapped ventilation zones to keep you cooler where it matters most, and the fit feels well-balanced thanks to the four-point compression and dual sternum straps.

One of the standout features is the removable trekking pole quiver, which tucks neatly away when not needed. It’s a clever addition for races or hilly routes where poles come in and out regularly. While the quiver partially limits the rear kangaroo pocket, the overall storage layout is still very usable for fastpacking or mountain ultras.

– Reviewed by Ultralight Outdoor Gear

Features

• Stowable and fully removable trekking pole quiver: Allows you to easily access your trekking poles while running.
• Engineering knit mesh: with body mapping technology: We incorporated our body mapping tech into this mesh design. There are men’s and women’s specific patterns, based on which parts of your backs get hot. Thus, keeping your back cooler!
• Secure phone pocket: Keep your phone close to the vest and close to you with our easy-to-access phone pocket.
  Dual adjustable chest straps: For an easily customizable fit, ensuring all day comfort.
• Stretch overflow pockets: perfect for any extras you may need on your journey.
• Fuel and Gear storage: Just enough room for all your snacks, water, and running gear.
• Reflectivity: Various points of intentional, highly-visible reflectivity to keep you safe on your run as the sun goes down.
• Safety Whistle: On the trails you are our number one concern. The safety whistle is perfect for alerting people you’re near or calling for help.
• Four-Point Compression: There are 2 compression straps on each side of the vest that help the vest to fit your body. They help the vest feel like it was designed specifically for your body and makes it disappear from your mind as you run.
• Ultralight Materials: This means no unnecessary baggage” for your trek, so you can run all day in comfort.
• Tube Trap: Allows you to have the versatility of using a reservoir, and to easily grab the hydration tube without having to unbuckle or unhook, for easy, on the go hydration.
• Quick Stow Flasks: This lightweight, collapsible flask fits easily into the pockets of your run vest and features our classic-one piece silicone bite valve for rapid hydration—perfect for race day.

Specifications

• Weighs: 277g (Including Quiver)
• Total Capacity 12L : 730 CU IN
• Cargo Only 11L : 670 CU IN
• Dimensions: 15.7 X 11.4 X 2.2 IN : 40 X 29 X 5.5 CM

Material & Construction

• Pack Body: N 40D ULTRA RIPSTOP WITH C0 DWR
• Pack Bottom: N 40D ULTRA RIPSTOP WITH C0 DWR
• Suspension: ENGINEERED AIR MESH WITH POLYGIENE®

Help & advice:

• The Ultimate Guide to Choosing an Ultralight Rucksack
• Time-Saver Guide to Choosing a Rucksack