A waterproof trail running jacket should be at the top of your essential kit list – well, maybe under shoes, but only just!
Training in the rain is pretty unavoidable. What you can control is what you wear. Investing in a high-quality waterproof will transform your running experience and keep you exploring the trails all year round.
Shortlist: Best waterproof running jackets at a glance
How we tested the best waterproof running jackets
We've been testing waterproof jackets year after year, so we know what makes a good one. Naturally, they need to have an excellent waterproof membrane while retaining a good level of breathability and comfort, which is certainly not an easy balance to strike.
We judge waterproof running jackets on a range of criteria, so alongside waterproofing and breathability, we also analyse their weight, range of movement, features and fit. Ultimately, when choosing a waterproof running jacket it needs to be both comfortable and functional.
All of our testing takes place in real-world environments, with testers Milo Wilson, Kate Milsom and Lily Canter taking to very soggy trails to put the below options through their paces.
Read more about how we test.
Best waterproof running jackets reviewed:
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What to look for in a waterproof running jacket
Jackets will come in varying levels of waterproofing, which is measured by their hydrostatic head (HH) rating. Premium-end gear has a 20,000mm HH or higher, which means a 20m column of water can stand on the fabric before water penetrates it. The minimum you would want for a rain jacket is 10,000mm HH.
The hydrostatic head (HH) of a material is the height at which a column of water must be held against a fabric, before the build-up of pressure that's created causes the water to start penetrating the material. These days, the test is carried out using a water pressure machine which can replicate the downward pressure created by such a column. Typically, the tighter the denier weave of the fabric, the less moisture that's let through.
In the UK, companies are allowed to claim that a garment is waterproof if it has a HH of at least 1500mm. However, we'd recommend you reach for a waterproof jacket with a HH rating of at least 10,000mm, if not 15,000mm. A high HH would be 30,000mm, which means that the fabric let through water only once the column of water pressure reached 30m high. In other words, this fabric has a high level of waterproofing.
For a garment to be fully waterproof, its seams must be properly sealed so no water can penetrate to the layers below. This means that the seams must be reinforced to keep the rain out, this can be from taping to cover up the tiny holes left in the material from stitching, or welding the seams which should create both a watertight and airtight seal.
Waterproof jackets struggle to be breathable as waterproofing creates a seal against the elements, which can also reduce airflow as well as water ingress. Look out for features like breathable materials, vents which can be opened during a break in the clouds, and thinner materials which will be more breathable than layers with thick waterproof membranes.
Some runners don’t like running with a hood, if you like the coverage though, a well-structured hood will keep you even more dry on a rainy run. Look out for internal wiring and structure to the tip of the hood to keep rain off your face, plus adjustability with drawstrings on the side along with a snug fit to keep the hood in place.
Look for jackets with some form of closure along the cuffs to keep the rain out. This could be with a drawstring, elasticated hem, or cuff that keeps the end of the sleeve tight to the wrist.
A zip is a point of weakness in a waterproof garment as this is an area where rain could seep through. A waterproof jacket should have reinforcement along the zip, which could be in the form of a waterproof coating, or a long zip baffle to provide an extra layer between yourself and the zip.
It’s likely that with rain will come conditions of low visibility. Grey and dim cloudy skies will make you far less visible to traffic and other runners, so having a jacket with some touches to boost visibility is always a plus in our books. This could mean a completely fluorescent colourway or be in the form of more subtle reflective details.
FAQs
Water-resistant jackets are designed to fend off light showers, but will eventually soak through during prolonged rain. Waterproof jackets, by contrast, have sealed seams, water-repellent zips, and a high hydrostatic head rating – offering complete protection from sustained downpours.
Check for technical fabrics that combine a waterproof membrane with moisture-wicking inner layers. Look out for ventilation features such as pit zips or perforated panels, and consider how thick the fabric feels – ultralight shells tend to release heat more easily than heavyweight options.
Generally, yes. The thinner the fabric, the more vulnerable it is to abrasion from pack straps or brambles. However, many high-end models now use ripstop or reinforced panels in key areas to balance minimal weight with long-term toughness.
Use a technical cleaner such as Nikwax or Grangers, and avoid standard detergents or fabric softeners, which can strip the durable water repellent (DWR) coating. Zip up all pockets and fasten Velcro tabs before washing, then hang dry rather than tumble dry.
If water stops beading on the surface and begins to soak in, it’s time to reproof. You can use a spray-on or wash-in treatment to restore the DWR coating – usually every 6 to 12 months depending on use and washing frequency.
Absolutely. Lightweight waterproofs double up nicely for hiking, commuting, or travel. Just bear in mind that running jackets prioritise breathability and freedom of movement over insulation or heavy-duty abrasion resistance.
Along with your waterproof jacket, you'll want to consider levelling-up to some to keep you feet as bone dry as your top half while you run.
About the authors
This group test covers the best waterproof running jackets for men and women. As such, we've used two testers.
Milo Wilson is our current trail running guru and is the world's fussiest jacket reviewer. He runs hot, hates sticky membranes, and refuses to look stupid. This means his criteria for a good running jacket is wildly harsh – but it also means that any jacket on this his is guaranteed to be extremely breathable and have a great fit.
Kate Milsom specialises in trail running content. In her career as a sports journalist, Kate has worked with industry-leading titles including 220 Triathlon, Cycling Plus, Road.cc and Cyclist. Prior to this, Kate studied English Literature and French at university, then got the outdoors bug and never looked back.