The field guide
How to choose your first running backpack
By The Runners Backpack editorial · Updated 18 September 2026 · Race-day kit
Your first running backpack should solve a carrying problem, not create another one. Before looking at products, write down what you need to take and where you need to reach it. The right answer might be a simple belt, a vest or a conventional pack.
1. Describe a real run
Start with your regular route rather than your most ambitious future event. Note the distance, likely weather, refill access and whether you are running unsupported. For an organised race, use the actual organiser’s kit requirements. If you commute, list work belongings separately from run essentials; shoes, a change of clothes and a laptop fundamentally change the load.
2. Gather the equipment
Put the actual items together. Include the phone in its normal case, the water containers you intend to use and the jacket you own rather than a smaller jacket from a product photograph. Check whether fragile belongings need their own protective bag. The more accurately you define the load, the less likely you are to pay for the wrong capacity.
3. Understand the capacity label
Storage litres and hydration capacity are not interchangeable. A 12-litre pack does not automatically include 12 litres of water storage. Check what is supplied and what must be purchased separately. Also consider usable organisation: one large rear compartment feels different from the same nominal volume split between small pockets.
4. Check sizing with the manufacturer’s method
A vest may be sized by chest measurement while a backpack may have an adjustable harness. Follow the current chart for the exact model. Allow for your usual clothing layers without deliberately buying an unstable fit. If possible, try more than one format with the expected load; brand loyalty is less useful than a suitable fit.
5. Test access and retention
- Can you reach water without removing the pack?
- Can you close a pocket with the gloves you expect to wear?
- Are your keys secured away from screens?
- Is the jacket retained when you change direction?
- Can you find the required kit without unpacking everything?
6. Think about care and replacement parts
Hydration equipment needs cleaning and drying. Read the care instructions for the bottles or reservoir and check that the opening is practical for you. Consider replacement caps, flasks and buckles before choosing an unusual system. Never assume a container is suitable for hot drinks or dishwasher cleaning unless its instructions say so.
7. Rehearse before the event
A living-room fitting cannot tell you everything about movement, rubbing or pocket access. Use the loaded arrangement in training and make one change at a time. That lets you identify whether a problem comes from sizing, strap adjustment, weight distribution or the item itself. Avoid taking a completely unfamiliar carrying system to race day.
Where to go next
Compare hydration packs if you need water and extra equipment. If your load is only a phone and keys, a running belt may be enough. For the final packing routine, use our race-day checklist.