Brand: HydraPak
Category: Running Water Bottles & Flasks
Recommended by Makena Morley, Professional Runner (Roads, Trails...) — Missoula, MT
Highlights: comfortable
The SkyFlask™ Speed 500ml is a lightweight, ergonomic soft flask designed for athletes who demand efficiency and comfort during their training or racing. With its innovative thumb loop and adjustable strap, this flask ensures a secure grip and quick access to hydration, making it an essential companion for any runner. 1. Innovative thumb loop design allows for a secure grip without unnecessary effort. 2. Adjustable, sweatproof strap accommodates various hand sizes and ensures a snug fit. 3. Made from soft, flexible materials that provide a comfortable, chafe-free experience. 4. SpeedFill™ Cap enables rapid refills, perfect for on-the-go hydration. 5. Compact design packs down easily for convenient storage when not in use. 6. Versatile ambidextrous design allows for use in either hand, catering to all users. 7. Backed by a Beyond Lifetime Guarantee, ensuring long-lasting performance and reliability. The SkyFlask™ Speed 500ml is ideal for runners, hikers, and outdoor enthusiasts who require quick and easy access to hydration during their activities. It performs best in dynamic environments such as trails, marathons, or training sessions, where efficiency and comfort are paramount. This product is perfect for athletes of all skill levels looking to enhance their performance while staying hydrated, regardless of the season or weather conditions.
Price: $33
- Who it's for
- Runners who need on-the-go hydration for hot weather, longer runs, or races with frequent aid stations, especially those skipping a vest in favor of a handheld or belt setup. Multiple hosts own several and use one to two per day in training.
- What people are saying
- Praise is consistent: comfortable in hand, easy to refill via the SpeedFill flip cap at aid stations, and collapses flat for storage when empty. One host flags that the SpeedFill cap can come undone when the flask is stowed in a pack.
- Worth noting
- Compatible with a filter cap, making it usable for backcountry water sourcing. The leaking-cap caveat is the only functional concern raised across all notes.
Makena Morley's review
Lots of these laying around the house! I usually will take 1 bottle per hour while I am in training so use 1-2 of these per day!
Recommended by Makena Morley, Professional Runner (Roads, Trails...)
Frequently asked questions
Who is the SkyFlask™ Speed 500ml for?
Runners who need on-the-go hydration for hot weather, longer runs, or races with frequent aid stations, especially those skipping a vest in favor of a handheld or belt setup. Multiple hosts own several and use one to two per day in training.
What do experts say about the SkyFlask™ Speed 500ml?
Praise is consistent: comfortable in hand, easy to refill via the SpeedFill flip cap at aid stations, and collapses flat for storage when empty. One host flags that the SpeedFill cap can come undone when the flask is stowed in a pack.
What should you know before buying the SkyFlask™ Speed 500ml?
Compatible with a filter cap, making it usable for backcountry water sourcing. The leaking-cap caveat is the only functional concern raised across all notes.
What does Makena Morley say about the SkyFlask™ Speed 500ml?
Lots of these laying around the house! I usually will take 1 bottle per hour while I am in training so use 1-2 of these per day!
Why does Makena Morley recommend HydraPak?
Makena Morley recommends the HydraPak SkyFlask™ Speed 500ml for running water bottles & flasks. Lots of these laying around the house! I usually will take 1 bottle per hour while I am in training so use 1-2 of these per day!
Is the SkyFlask™ Speed 500ml a good running water bottles & flask?
Yes — Makena Morley recommends the SkyFlask™ Speed 500ml by HydraPak as their running water bottles & flasks pick. Lots of these laying around the house! I usually will take 1 bottle per hour while I am in training so use 1-2 of these per day!
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What other hosts are saying
9 experts recommend the HydraPak SkyFlask™ Speed 500ml.
The handheld option makes this super versatile...you to drink while running without having to retrieve your bottle from your pack! With good planning and a filter, I am usually fine with 1 L total water capacity on most of my trips (two 500 ml soft flasks). One thing to be mindful of if you are storing this in your pack is that the Speedfill cap can come undone!
Recommended in Fastpacking
Shelby Farrell, Athlete. Marketing Professional. Cat Mom.
The SpeedFill cap is a game-changer. No fumbling with twist caps when you’re rushed and wrecked mid-ultra. The handheld strap is simple and dialed. Easy to carry when full, easy to stash when empty.
Recommended in Fuel & Flasks
Klaire Rhodes, Professional Trail/Mountain Runner
I own maybe 6 of these! The best handheld bottle for short runs or races where I opt for a belt over a vest.
Recommended in 10 Products I Actually Use Every Day
Only handheld bottle worth using, flip top works great at aid stations, is light enough to stash and forget when empty. The gold standard for bottles.
Recommended in Broken Arrow 2026
Great handheld option to avoid carrying a vest or belt, especially for faster stuff and races with frequent aid stations.
Recommended in Trail stuff
Hayden Tharp, Running/Fitness Enthusiast
If you sweat like me, hydration is top of the list. I love this bottle. Very comfortable, excellent capacity, and it stays cool better than most other brands I’ve tried!
Recommended in Essentials
I use this handheld flask for every run when the weather is hot and on longer runs all year long. It’s very comfortable in the hand and packs down for easy storage once empty
Recommended in 10 Products I Actually Use
Allison Powell, Ultrarunning Coach, Ultrarunning Communnity Leader
Adding the filter cap onto my bottles was easy! A great addition to my backcountry adventures!
Recommended in Tahoe-Yosemite FKT
