Running backpacks with drinking system

With our running backpacks you are completely ready for every challenge. Whether you do a long endurance run or head into nature for a trail run, with the right backpack you always have everything within reach and run more freely and comfortably than ever before. Get the maximum out of every run, safely take your most important belongings with you without impediments and experience ultimate comfort and freedom of movement with every step you take.

The range runs from compact drinking vests of 2 to 5 litres for shorter runs and races to extensive trail backpacks of 10 to 20 litres for long trail runs and ultramarathons where you want to be completely self-sufficient. The main selection criteria are the volume, the type of drinking system, the fit on your build and the presence of sufficient storage pockets for nutrition and extra equipment. Also view our range of hydration belts if you only want to take hydration without storage space.

Why a running backpack with hydration system?

Without a hydration system you are dependent on drink stations along the way or carry a bottle in your hand. Both are limitations that negatively affect your running experience. A drink station is not always there, a bottle in your hand disturbs your arm swing and arm and shoulder tension. A running backpack or running vest with integrated hydration system gives you complete freedom: your hands are free, your hydration is always within reach and you can continue to perform even on long routes without drink stations.

Staying well hydrated is essential for your performance. Already at 2 percent fluid loss relative to your body weight your performance drops noticeably. During warm training sessions and long distances that percentage can be reached after half an hour. A running backpack ensures you can take regular small sips while running, which is better for your hydration level than large gulps at a drink station. Also read our blog starting with running for more tips about hydration and equipment at longer distances.

Which running backpack suits you?

The right choice depends on the distance you run, what you want to take along and whether you are primarily going for hydration or storage space. The following scenarios help you quickly find the right direction.

You run training sessions up to one and a half hours and want to take minimal along: Choose a compact drinking vest of 2 to 5 litres. Lightweight, barely noticeable and suitable for water, an energy bar and your keys. The most popular choice for runners who are purchasing a backpack for the first time for regular endurance runs and half marathon training.

You run long endurance runs or shorter trails of 1.5 to 3 hours: Choose a running vest or running backpack of 5 to 8 litres. Alongside sufficient water and nutrition there is room for a light jacket, phone and small extra items. A good balance between lightweight and functionality for most recreational and advanced runners.

You run long trail runs or marathons where you need to take more along: Choose a trail backpack of 10 to 12 litres. Room for extra clothing, nutrition for multiple hours and possibly compulsory equipment at organised trail races. Compact enough not to bounce when running but spacious enough for everything you need at long distances. Also read our triathlon beginner's guide if you also train triathlon and want to know how running training fits into your total schedule.

You train for ultra trails or spend a day in the mountains: Choose a trail backpack of 15 to 20 litres for completely self-sufficient trips. Room for warm clothing, first aid kit, large water reservoir and technical equipment. These backpacks are designed for intensive use on rough terrain with extra stabilisation systems and multiple layered storage pockets.

You want to take your phone, gels and keys without wearing a backpack: Choose a hydration belt for hydration around your hips or view our range of running accessories for compact hip bags and phone armbands as an alternative without a backpack.

Running vest or running backpack: what is the difference?

A running vest or drinking vest is a tight-fitting vest with soft flask holders at the front and a compact storage compartment at the back. It sits like a second skin around your body, barely bounces and is ideal for shorter distances where you want to quickly reach your flasks.

A running backpack has more volume, a larger bag at the back and is designed for longer distances where you want to take more along. Can be combined with soft flasks or a water bladder with drinking tube. Slightly more weight than a drinking vest but also significantly more storage space.

For races and shorter distances a running vest is the most popular choice. For long trail runs and ultramarathons a running backpack with larger volume is the better choice.

Hydration systems: soft flasks or water bladder?

Soft flasks

Soft flexible drinking bottles that you carry in the chest pockets of your running vest. Directly accessible without stopping, easy to refill and they become smaller as they empty which reduces weight and volume build-up. The most commonly used choice with running vests and shorter trail backpacks. Ideal for quick refills at drink stations and for runners who want to monitor their drinking performance per flask.

Water bladder with drinking tube

A drinking bladder or water bag that sits in the rear compartment of the backpack with a tube that runs over your shoulder to your mouth. You can drink without stopping or reaching. Larger capacity than soft flasks, suitable for water bladders of 1.5 to 3 litres. Ideal for ultra trails and mountain hikes where you cannot refill for a long time. Slightly harder to refill and clean than soft flasks but unrivalled in ease of use at long distances where you want to constantly take small sips.

Combination

Many modern running backpacks offer both: soft flask holders at the front for quick access and a water bladder-compatible rear compartment for large water capacity. The most versatile solution for advanced runners and triathletes who want to be flexible in their hydration system.

How much volume do you need?

2 to 5 litres: Shorter runs and races up to one and a half hours. Water, an energy bar and keys. Ideal as a compact drinking vest for regular training sessions.

5 to 8 litres: Longer endurance runs and shorter trails of 1.5 to 3 hours. Alongside hydration room for a light jacket, phone and nutrition for multiple hours.

10 to 12 litres: Long trail runs and marathons. Extra clothing, nutrition for a complete training session and possibly compulsory equipment at organised races.

15 to 20 litres: Ultra trails and self-sufficient day trips. Warm clothing, first aid kit, large water reservoir and technical equipment.

20 litres and more: Multi-day adventures and expeditions. Everything you need for an overnight stay or extended stay in nature.

What to look for when buying?

Fit and stability

The fit is the most critical criterion with a running backpack. A backpack that bounces or shifts with every step causes irritation and muscle tension in back and shoulders. Choose a model that fits closely enough to barely move but still stays comfortable during prolonged use. Adjustable chest straps, hip straps and shoulder straps give the most precise fit on your build.

Volume and capacity

Choose the volume that suits the distance you run most. Too large is heavier than necessary and disturbs your running balance. Too small forces you to make choices that can get you into trouble along the way. Consider a model with expandable volume if you want to do both shorter and longer runs.

Storage pockets and organisation

Check how many and which storage pockets are available. Soft flask holders at the front, a phone pocket with direct access, gel holders on the shoulder straps and a main compartment with sufficient room for clothing and equipment are the most commonly used features. A poorly organised backpack costs you unnecessary time along the way when searching for your items.

Weight

The lighter the empty backpack, the less extra weight you carry with every step. Premium running vests weigh 100 to 200 grams. Larger trail backpacks weigh 300 to 600 grams empty. For races and speed-focused running you always choose the lightest model that offers sufficient volume.

Weather resistance

Preferably choose a model with water-repellent outer fabric for protection of your contents in rain. For extreme weather conditions models with a built-in rain cover are available. Also check whether reflective elements are present for visibility during evening training sessions. Combine with lighting and safety equipment for maximum visibility in the dark.

Our advice: Always test your running backpack during a training run before taking it to a race or long trip. Set all straps precisely and load the backpack with the weight you expect to carry during the race or trip. A backpack that fits perfectly empty can feel different with contents. Combine with the right running shoes and running socks for a complete kit for longer distances.

Who are running backpacks with hydration system suitable for?

• Long distance runners who want to be independent of drink stations at half marathons, marathons and long endurance runs.
• Trail runners who train on unpaved paths and in nature at locations without water facilities and want to be completely self-sufficient.
• Triathletes who also want to optimise their running training sessions with a compact drinking vest for long running sections.
• Ultramarathon runners who at trips of multiple hours or multiple days want to carry everything they need with them.
• Recreational runners who in summer warmth also want to take sufficient water along on shorter training sessions.

Combine your running backpack with the right sports nutrition for prolonged energy supply during long training sessions and races. Also read our blog the 10 biggest beginners' mistakes in running to avoid common mistakes.

Need help with your choice?

We will be happy to help you. You can reach our running specialists by phone on +31 (0)413-256800, send an email or visit our triathlon store in Volkel, the Netherlands.

Frequently asked questions about running backpacks with hydration system

What is the difference between a running vest and a running backpack?

A running vest or drinking vest is a tight-fitting vest with soft flask holders at the front and a compact rear compartment for smaller volumes up to 5 litres. A running backpack has more volume and a larger rear compartment for longer distances where you want to take more along. For shorter distances and races a running vest is preferred. For long trails and ultramarathons a running backpack with more volume is better.

Soft flasks or water bladder: which is better?

That depends on your preference and the distance. Soft flasks are easier to refill and give direct insight into how much you have drunk. A water bladder with drinking tube gives hands-free drinking without reaching and is better for continuous small sips at ultra trails. Many modern backpacks support both systems so you can choose or combine.

How do I clean my water bladder?

Rinse thoroughly after each use with clean water. Use a water bladder cleaning tablet or mild washing up liquid for deeper cleaning. Let the water bladder dry completely before storing to prevent mould formation. Some water bladders are dishwasher-safe; check the specifications of your model.

How do I prevent my backpack from bouncing during running?

Set all straps precisely so the backpack fits closely to your body. Fill the backpack sufficiently but not too heavy. A too-light or too-loose backpack bounces more than a well-adjusted backpack with the right amount of contents. Always test the fit during a training session before taking it to a race.

Which volume running backpack do I need for a marathon?

For a marathon race where you primarily want to hydrate a compact drinking vest of 2 to 5 litres is sufficient. For a marathon training session where you also want to take along nutrition, a jacket and phone, 5 to 8 litres is more comfortable. Also check the race rules of your organisation: at some marathons running vests are not permitted or specific rules apply.

Can I also use a running backpack for trail running?

Yes, running backpacks are even more standard at trail running than at road running. For trail running choose a model of at least 5 litres for shorter trails and 10 litres or more for long trails where you also need to take extra clothing, nutrition and compulsory equipment. Check whether the model has a place for poles and a good hip strap for stability on rough terrain.