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A running vest (also called a hydration vest or hydration pack) is essentially a lightweight, form-fitting backpack designed specifically for runners. Unlike a regular backpack, it’s designed to reduce bounce and distribute weight evenly across your chest and back.
You don't need to be training for an ultramarathon even a marathon to justify wearing a running hydration vest. In fact, if you've ever tried juggling your phone, keys, gels, water bottle and maybe a banana (respect), you'll know the struggle is real.
Enter: the running vest – a piece of fitness gear that makes you feel a bit like a superhero and a lot more organised.
Running vests have been growing in popularity, and for good reason. Whether you're gearing up for your first 10K, walking the trails, or just want to stop stuffing snacks into your sports bra (we see you), a good running vest might just be the upgrade you didn't know your running attire needed.
In this guide, we'll break down everything you need to know about running vests: like what they are, when to wear one, their benefits, how to choose the right one for you, and most importantly, how to run safely with one.
So, What Is a Running Vest?
A running vest (also called a hydration vest or hydration pack) is essentially a lightweight, form-fitting backpack designed specifically for runners. Unlike a regular backpack, it's designed to reduce bounce and distribute weight evenly across your chest and back. Many models include built-in hydration bladders, water bottle pockets, storage compartments for snacks, and even loops for trekking poles.
Some key features of a running vest include:
- Hydration storage (bladder or soft flasks)
- Pockets for water bottles
- Zippered pockets for nutrition and essentials
- Larger pockets for extra layers or gear
- Adjustable straps for a snug, bounce-free fit
- Breathable mesh to prevent overheating
- Reflective elements for visibility on early morning or night runs
When Should You Wear a Running Vest?
As mentioned earlier, you don't need to be running 50K through rocky terrain to justify wearing one. Running vests can be helpful in a variety of situations:
- Long runs: Anything over an hour, especially in warm weather or remote areas, could benefit from some on-body hydration and nutrition storage. But look, if you just want to wear one on a walk, that is perfectly OK too.
- Trail running: If you head off the beaten track, it might also mean a water fountain or corner shop is out of sight too. With a vest you can bring what you need.
- Run-to-Swim: Fancy a dip in the ocean after your run? No sweat, pack your swimmers.
- Commuter runs: Need to bring keys, your phone, or a change of shirt? A running vest keeps it all close and secure.
- Training for a race: Practice with the same gear you'll race in. If you're planning on wearing a vest for your marathon, don't save it for race day.
Benefits of Wearing a Running Hydration Vest
So, why opt for a vest? If we have yet to convince you, here’s a few more standout reasons:
1. Hydration on the go
Staying hydrated without having to hold a water bottle? Yes please. The hands-free convenience of a vest makes it easy to sip water without breaking stride.
2. Smart storage
Most vests have multiple pockets within arm's reach perfect for snacks, phone, keys, suncream, or emergency toilet paper (hey, it happens).
3. Weight distribution
Unlike waist belts that can sometimes bounce or ride up, vests spread weight across your torso evenly, reducing pressure on any one spot.
4. Comfortable fit
With adjustable straps and breathable mesh, vests feel like a second skin. The bounce-free design means less chafing and more comfort on longer runs.
5. Increased intensity
Wearing a running vest, especially one with water bottles, nutrition, or gear naturally adds a bit of weight, which can increase the effort required during your run. That extra resistance helps elevate your heart rate, boost endurance and can make your usual loop feel just a little more challenging – in a good way.
6. Peace of mind
Having everything you need with you to tackle longer or more remote runs. Hydration, check. First aid and snacks, check check!
How to Choose the Right Running Hydration Vest
Opt for flask versus bladder
Running vests typically offer two hydration options: soft flasks (usually carried in front chest pockets) or a hydration bladder (which sits in the back). Flasks are easier to refill and monitor, while bladders can hold more fluid and can keep your hands free while you sip. It's a good idea to think about the distances you'll be running and your access to refill points when deciding which setup suits you best.
Pick the right capacity for your distance
Running vests come in a range of storage capacities, usually measured in litres (this is water and storage combined). The right size really depends on how far you're going and how self-sufficient you need to be. Below is an approximate guide to help.
1L
Ideal for shorter runs (1-2 hours) or races where aid stations are frequent. These vests are usually slim, lightweight, and carry just the essentials such as water, keys, phone and maybe a gel or two.
2-6L
A great middle ground for longer runs (2–3 hours), where you might need extra hydration, snacks or a light layer.
10L+
Best for trail adventures, ultramarathons or runs where you need to carry more gear (like a jacket, first-aid kit, or poles). These vests typically offer a mix of flask and bladder storage, plus room for all-day supplies.
Storage needs
Consider what else you'll want to carry. Are you just bringing water and keys, or do you need space for gels, your phone, a lightweight jacket, or even trekking poles? Multiple pockets (preferably zippered for valuables) are always a good idea and a layout that keeps your essentials accessible on the go.
Breathability
Materials can vary depending on use. For running (especially in warmer weather) lightweight, breathable fabrics are great. Mesh panels and moisture-wicking materials can make a big difference in overall comfort, especially on longer runs.
Intended use
Some vests are more for running, while others are built for long-distance trail adventures with more storage and durability. Choose a vest that aligns with your primary use. If you're just starting out or doing shorter runs, you may not need all the bells and whistles that a larger capacity vest may offer.
Choose a good fit
Aim for a snug but comfy fit that stays put without bouncing, not one that you're constantly adjusting mid-run. Vests with adjustable straps are ideal, as they let you tweak the fit for your shape and can help avoid unwanted rubbing or chafing. Refer to manufacture's size guidelines for help.
Try it out first
If possible, head in-store and try before you buy. Load it up with all the essentials and go for a quick jog around the store. Pay attention to pressure points, bounce and ease of access to water and pockets.
Different Types of Running Vests
Vests come in a few different flavours, depending on your needs:
1. Hydration Vests
These are the most common. Hydration packs come with built-in water storage via soft flasks or a hydration bladder. Ideal for long runs, hot weather, and trail running.
2. Minimalist Vests
Lightweight and low-profile, these are great for shorter runs where you just want a phone, a gel, and maybe a credit card. Less bulk, more freedom.
3. Larger Vests or Backpacks
Perfect for outdoor adventures, these vests are usually roomier, with streamlined designs and easy-access pockets for quick fuelling. Many include built-in compartments for essentials like a jacket, towel, or change of shirt, while some even feature loops or sleeves to secure trekking poles.
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Running Vest FAQs
What's the difference between a running vest and a hydration pack?
The terms are often used interchangeably, but hydration packs may be bulkier and more suited for hiking or cycling. Running vests are often smaller, lightweight and designed for high-mobility, bounce-free use.
How should a running vest fit?
It should feel snug but not restrictive. Use the adjustable straps to find the sweet spot. I.e. Tight enough to prevent bounce, loose enough to breathe.
Can you run a marathon with a vest?
Absolutely. Many runners wear vests for marathons, especially if air or drink stations are sparse or you have specific fuelling needs.
Are running vests worth it?
If you're running long distances, on trails, or just want to carry your gear comfortably. Yes, they're really handy and can help a lot.
So, whether you're heading out for a weekend long run or plotting your first trail running adventure, a running vest might be the companion you didn't know you needed. It's not just about keeping your thirst at bay, it's about having everything you need stashed safely and comfortably so you don't need to turn around. Let's face it, having a few more snacks within reach is always a good thing too.
Ready to Shop?
Check out our entire range of running vests and hydration packs online, or head in-store to speak to one of our friendly rebel staff to help you find the right one for you.