On Weather Jacket review

Last updated: 05-Sep-18

By Fiona Outdoors

The On jacket is described as an “ultralight running jacket protecting you in all weather”. The brand also claims: “It feels like you’re wearing nothing: Lightweight Japanese fabrics offer 360° ventilation in an ultralight package.”

I have tested the jacket on cool, wet evenings at the end of a Scottish summer and on warmer, wet afternoons.

Features

  • 100% polyamide protective and tear-proof upper fabric across the chest and shoulders
  • Four-way stretch fabric
  • Soft touch fabric
  • Highly breathable
  • Fabric coated with advanced DWR (durable water repellent).
  • Engineered hood that can be adjusted for a “perfect fit and field of vision“
  • Chest pocket for stashing small items and folding up the jacket
  • Some taped seams (“where needed”)
  • Adjustable elasticated hem.
  • £190

RUNULTRA_ON-jacket-review

Photo credit: On-running.com.

Pros: What’s good about the On Weather Jacket

The jacket really is very lightweight and easy to wear. It’s comfortable against the skin, even when wearing a short-sleeved top underneath. The fabric is light and floaty, rather like parachute fabric.

The fit is flattering. I am a UK10 and the size medium fits well with room for a couple of thin layers underneath. The medium size fits my shoulders and I imagine the small size would be too neat.

I have long arms yet the sleeves easily cover my wrists. I like that the outer part of the sleeve is a little longer and the underside is shorter, to neatly fit over the wrist where you bend it.

The stretch fabric allows great freedom of movement, which is important when you are running.

The hood is also brilliant. It can be adjusted to give a great fit and even when running in wind it stays up. The stiffened peak keeps the rain off the face.

RUNULTRA_ON-jacket-review

Photo credit: Fiona Outdoors.

Because the fabric is so light I worried that it would not be as waterproof as claimed but the DWR is effective at keeping the wet out. Light to moderate rain simply rolls off the outside of the jacket. (See notes below, too.)

The jacket is windproof yet still very breathable. It is so easy to wear in both warm and wet and cold and wet conditions. The ventilation is superb.

During the past few weeks of wet and warm weather I have taken to wearing a t-shirt with this jacket over the top. It is an effective way to maintain a good temperature.

The jacket stuffs into its own chest pocket to make a small pack size if you are not wearing the jacket. This is easy to do and the resulting zipped bundle has a wide strap that allows you to easily carry the pack in your hand.

The full length zips works well and there is a fabric overlay at the top to prevent it rubbing on skin when fully zipped.

RUNULTRA_ON-jacket-review

Photo credit: Fiona Outdoors.

Cons: What’s not so good about the On Weather Jacket

I am fairly tall and most of this height is in my legs so I wouldn’t say I have a long torso. The On Weather jacket is only just about long enough. If you are tall you might find it is a little short. Remember, too, that I have the size medium.

In heavy and sustained rain the DWR is not adequate to stop the jacket wetting out but the fabric still offers a great balance of water repellency and breathability.

While the DWR treatment is good, in my experience it does wear out with use. To maintain the waterproofing you will need to re-waterproof using a DWR treatment at home. These are fine but never as effective as the treatments created during processing.

Also, when it rains the water rolls off the bottom of the jacket to soak shorts, or whatever you are wearing.

On states that seams are bonded where needed. This is practical but if you are planning to use the jacket for races that call for a jacket with all seams sealed it may not be adequate. It also means that if the rain is driving rain or there is a wind while it rains, the other seams may well leak.

There are a couple of colourways but it would be good to see some brighter colours in the collection.

The price of £190 is a lot for a jacket.

Conclusion

The On Weather Jacket is very easy to wear and feels extremely lightweight. Waterproofing and breathability is surprisingly good although heavy and sustained rain proves too much for the DWR treatment.

The jacket is pricey.

Score  
Design 9/10
Features 8/10
Performance 9/10
Value 7/10
Total 8.25/10


Other jackets you may want to try:

Ronhill Infinity Torrent jacket
Montane Minimum Stretch Pull On Jacket
Salomon Bonatti jacket

Have you tried the ON Weather jacket? Don’t agree with this review? What’s your opinion? Add your own comment to this review and share your experience and passion for running with others.

Not a member yet? Sign up here to be part of the RunUltra community and share tips and stories with thousands of fellow runners around the world.

We are a professional review site and our reviewers receive free products for testing from the companies whose products we review. We test each product thoroughly and give high marks to only the very best. We are independently owned and the opinions expressed here are by the reviewer’s name shown.

Disclosure:
We use affiliate links in some of our reviews and articles. This means that if you purchase an item through one of these links we will earn a commission. You will not pay more when buying a product through our links but the income will help us to keep bringing you our free training guides, reviews and other content to enjoy. Thank you in advance for your support.

OUR RATING:
4/5
YOUR RATING:
0.0/5

"The ventilation is superb"

Share on twitter
Share on facebook
Share on linkedin
Share on pinterest
Share on reddit
Share on whatsapp
Share on email

Like what you read?

Click here to sign up for more

Related reviews

REVIEW On Weather Jacket review

{{ reviewsTotal }} Review
{{ reviewsTotal }} Reviews
{{ options.labels.newReviewButton }}
{{ userData.canReview.message }}

Global - Virtual

Elevation

A virtual race which can be run at any time shown on the dates shown, on any type of terrain in any country.

Suitable for

For runners from beginners to experienced as you choose your own course and challenge based on the guidelines and options set by the virtual race organiser.

Endurance - Multi-activity

Elevation

An ultra distance race including at least two of the following activities such as running, swimming, cycling, kayaking, skiing and climbing. It may also include different climatic conditions (eg ice, snow, humidity, cold water, mud or heat).

Suitable for

Experienced multi-skilled athletes who have trained for the different activities included in this event. Admission to these races may be subject to receipt of a recent medical examination certificate. Check with the race organiser regarding entry requirements and any specialist equipment required such as a wetsuit, skis or a mountain bike.

Brutal

Elevation

Increase of up to 2000 metres with very challenging climatic conditions (e.g. ice, snow, humidity, heat or at high altitude)

Suitable for

Very experienced long distance ultra runners (min 3 years’ experience) or are doing regular long distance running (>50 miles) with elevation and conditions shown (where possible). Admission to these races is often subject to receipt of a recent medical examination certificate. Purchase of specialist kit is often recommended for these races.

Expert

Elevation

Increase of up to 2000 metres with some challenging climatic conditions (e.g. ice, snow, humidity or heat)

Suitable for

Experienced runners who have completed at least 4 ultras in last 12 months, or are doing regular long distance running (>50 miles) with elevation and conditions shown (where possible). Admission to these races may be subject to receipt of a recent medical examination certificate. Check with the race organiser regarding entry requirements.

Advanced

Elevation

Increase of up to 1500 metres

Suitable for

Runners who have completed several ultra distances or similar events, or are doing long distance running regularly, with elevation shown.

Intermediate

Elevation

Increase of up to 1000 metres

Suitable for

Runners who have completed at least one ultra in last 6 months or are doing long distance running (>26 miles) regularly, with elevation shown.

Beginner

Elevation

Very little change < 500 metres

Suitable for

First ultra event. Runners completing a marathon or doing regular long distance running (>26 miles) in the last 6 months.