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Nokomis Cycling Rain Jacket _ Small

Normally $189.95 Our Price: $49.99

Out of Stock

O2 Nokomis Bike Rain Jacket


Only Size Small

The rugged Nokomis series is built with the hard-core cyclist in mind. It’s made from our most breathable fabric and features superb ventilation. A slightly looser fit lets you layer on cold days, and detachable sleeves help you cool off when the temperature heat up.  It even packs into its own back pocket and has straps that attach to your seat post so you can always have it with you.


  • 100% Brushed 2.5 Layer Rip-Stop Nylon
  • Waterproof, Breathable, Lightweight
  • Waterproof, fully taped internal seams
  • Detachable (zip-off) Sleeves
  • Packs into its own back pocket & has attachments that strap on to the seat post
  • Cross Shoulder Vents and mesh back panel on gilet
  • Waterproof full-length front zipper with garage
  • Welded waterproof regular back pocket and Napoleon front pocket
  • Elastic wrist cuffs with velcro closure
  • Lower back loop for lights to clip onto
  • 360 degrees of reflectivity for safety
  • Form Fit
  • Supreme Wind & Water Protection
  • Breathability: W/R; MVP: 15,000g/m2/D;
  • Waterproof: 15,000mmH2O
  • Weight: Avg. 420gm depending on size
You can save $10 off the normal price of O2 Calhoun Rain pants by purchasing them on this page from the drop down box above.


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Our Size and Quality Guarantee
If the Cycle Waterproof Rain Jacket doesn't fit, or for any other reason, you may return the item unused in original packaging. You may choose to exchange for a different size, get a store credit, or a full refund.

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Read The Reviews on O2 Nokomis Cycling Waterproof Rain Jacket 

By Ken Bonner April 2012 



  • Bright – good warning for motorists
  • Convertible to wind vest
  • Mid-back ventilation flap
  • Rear pocket also serves as storage for this jacket
  • Rolls into small package; relatively light at 14 ounces (397 g)


  • No arm-pit zips
  • No rear forearm reflective piping (See discussion below)
  • Only one-way front zip


Time tested:  Several months  

As an ultracyclist, I ride about 18,000 miles (30,000 km) per year, mostly on roads in the Pacific Northwest of the U.S. and the ‘Wet’ Coast of Canada. I have a basement full of cycling rain jackets that were full of promise but did not live up to expectations.

In my experience, almost any rain jacket will prevent heavy, cold rain from penetrating through to the cyclist (even a large garbage bag, in an emergency, can do this). Similarly, most rain jackets will dissipate moisture created by the cyclist’s exertion, but only over normal, short commuting distances.

I have yet to find a cycling rain jacket that truly keeps the cyclist dry from moisture created from within the jacket. I can live with that situation. However, there is no need to become chilled as a result. My all-time favorite rain jackets, the MEC Bernoulli and the Gore Fusion, left me wet from the inside, but both jackets were well-ventilated and kept me warm and comfortable even in heavy rain, with temperatures near the freezing mark. Alas, they are no longer available. What to do? 

Scrounging in my basement, I discovered an inexpensive ‘Original’ rain-jacket from O2 Rainwear that I had used many years ago while riding one of the five 1200k Paris-Brest-Paris events I have finished. Researching to see if this jacket was still available, I discovered that O2 Rainwear has two new rain jacket models, including the Nokomis, introduced in 2011.

Easy Versatility

The Nokomis is a great jacket for commuters, weekend riders and long-distance cyclists. When the rain stops and the day warms up, the sleeves can be easily removed, converting the rest of the jacket into a wind vest. It has a comfortable high neck with a cord at the back to adjust the snugness of the fit around the neck. The Nokomis also has an adjusting cord around the bottom of the rear-flap so it can be adjusted to fit closely to the body. 

If wearing the Hi-Viz jacket in daylight, it would be difficult for a motorist to claim they did not see the cyclist. The reflective piping is also useful at night, although there are other rain jackets on the market with more reflective taping. An improvement would be to place reflective piping on the rear of the forearm, so that during hours of darkness fellow road travelers approaching from the rear would be made aware of the cyclist’s intent to make a turn.

The Nokomis also has a loop on the rear flap in order to attach a small rear flashing light and/or a reflective triangle. This is a nice feature to have when one is making an adjustment or repair off the bike. 

The Nokomis fits large compared to normal sizing. Although a medium size would fit me better (probably eliminating the sleeve flapping on fast descents), I ordered a large, so I could wear more clothing layers under the jacket. However, from my experience with the Nokomis, I found I do not need extra inside layers of clothing. 

The wrist openings of the jacket’s arms have both elastic and Velcro closures. I found the elastic closure too tight to pull over my gloves, or to provide extra venting via the wrist openings. My preference would be to have only the Velcro closures.

Washing instructions recommend a cold water wash and hang to dry. O2 Rainwear suggested that a warm water wash is OK, but only use a washing machine’s gentle cycle. 

Overall, the Nokomis is a really nice, versatile rain jacket. 4.5 stars/5   

Ken Bonner is a marathon runner and renowned ultracyclist who holds the course record for the British Columbia Rocky Mountain 1200k and several UltraMarathon Cycling Association point-to-point records. Retired and living in Victoria, British Columbia, he rides about 18,000 miles a year.

review from 

by Brian Mullin Sept 2011

These fine two products from the Minneapolis based Rain Shield’s O2 rain gear line are for the “hard-core” cyclist, and they offer excellent breathability and waterproofness, and have plenty of features that are functional, and very bike specific, and the material and build quality are outstanding. They are lightweight and highly packable, and they keep you dry and warm, even in torrential downpours, while retaining superb breathability characteristics for a set of rain gear. They both have great attributes, and the jacket’s highlight is its ability to convert to a vest, making it extremely useful as a windbreaker.

O2 Nokomis Jacket and Pants
The Nokomis series are designed with their 3Flow performance fabric, which uses a waterproof and breathable microporous film that is bonded to a nylon outer shell. This ultra-breathable fabric features millions of microscopic pores, and water droplets (rain) are large in comparison to the pores, so they get stopped from passing through to the inside, while water vapor (sweat) is smaller than the pores and can pass through to the outside.

The waterproof, windproof, breathable, and lightweight jacket and pants are made with 100% brushed 2.5 layer rip-stop nylon and have taped seams. The form fit jacket has welded zip-off detachable sleeves, and a cross shoulder venting and mesh back panel, welded back pocket and Napoleon front, and a full front zipper, and elastic cuffs with Velcro closures. In addition, it packs into its own back pocket, has a back loop for a light and has 360 degrees of reflective piping for safety. It comes in five sizes, S, M, L, XL and XXL, and two colors, Black and Hi-viz Yellow, and weighs approximately 14 ounces. The pants has an elastic waist band with a draw cord, elastic ankle cuffs with zippers for easier egress, and reflective logos for safety. It comes in five sizes, S, M, L, XL and XXL, and one color, Black, and weighs approximately 10 ounces.

Musings on Weather and Rain Garments
Even though Colorado is a usually dry place, when it decides to rain in the summer time, it comes down in torrents, and a piece of rain gear gets quickly put through a torture test. Every nook and cranny it going to be hit hard with wind, hail, rain, and the water will seek out any weak flaw in a design or material. This year we had storms that seemed to burst like crazy out of the sky, and then calm down, and drizzle for hours on end. Garment seams, zipper sections, the neck opening and the hydration pack zones, such as the upper back and shoulder straps get hit the hardest, and you’ll feel Mother Nature’s wrath quickly, and a sodden jersey can make one cold, wet and even hypothermic. The breathability is the passing of water vapor or sweat out through the material, and the waterproofness is the prevention of the penetration of liquid water, but in reality, waterproof breathable fabrics should really be considered extremely water-resistant. There’s a fine line between breathability and waterproofness in a garment, it can be greatly exacerbated by your core temperature and that of the outside environment, both of which can elevate overheating issues. It’s not comfortable when the piece of gear you are wearing to prevent you from getting wet, is making you sweat like a steam room on the inside, which is definitely counterproductive, and unpleasant. I don’t wish to overheat too much, nor get chilled, but there is always going to be some compromise between the ventilation, breathability and waterproofness, and biking inherently has moments of extremes, from cooling fast downhills to heat producing climbs.

I tested the Nokomis jacket by itself, and with the Nokomis pants, and almost always wore them with waterproof overshoes and helmet cover when the rain was heavy.

I have gotten the system in quite a few heinous rain storms, and I was always able to stay nice and dry underneath the jacket and pants, and they breathed pretty well for rain gear. The jacket and pants were comfortable, lightweight, durable, with enough useful and functional features, while still retaining some simplification, especially the pants. They are so light and packable, that it’s easy to bring them along no matter what the current weather is like, which is a good thing since you won’t be caught with your guard down in a storm. The Hi-viz Yellow color will certainly let drivers, and other trail users know that you are there, but the light color did show some subtle pack stains from long term usage.

The jacket worked really well, and had a great combination of breathability and waterproofness, and the 3Flow performance fabric did an excellent job of not letting me sweat to death during downpours, even when cranking up long steep climbs, yet still kept me dry from the rain inundation. The jacket offered adequate length and roominess, but fit snug enough that it wasn’t flopping around in the wind nor on a ride. The form fit worked fine for me, and I was even able to wear a set of soft elbow/forearm guards under it. If you commute, you might want to get one size larger, for the varying thickness of street clothes? The length worked well in front, since it kept the jacket from snagging on the saddle when doing maneuvers on the bike. The diaper rear tail kept the water trickling down past your lower back and out over the saddle, and helped keep things covered when bent over the handlebars, keeping your butt drier, which was especially nice when not wearing the waterproof pants. The length of the rear droop worked perfect, since I didn’t have any snagging issue. The tall collar kept rain from creeping in, and the additional height towards the rear helped with the typical prostrate position on a bike. The jacket has two pockets, one large one at the lower rear, and a Napoleon. The rear pocket can also serve as a transportation pack, just reverse the pocket, and fold the jacket into itself, and then some handy Velcro straps allow you to fasten it to your seat post or frame. I never used this function, since I always carry a pack. The zippers are well sealed, and never leaked on me, and although they are robust, I found they have a tendency to snag and grab the adjacent thin material when using them. The zippers on the sleeves end right up where a pack’s shoulders strap hits, and on occasions, the small bump from the zipper slider can irritate the clavicle area, although moving them down slightly can sometimes alleviate the issue.

My favorite feature of the jacket, is that it can become a vest by unzipping the sleeves, and unsnapping the shoulders, which all comes off in one long piece, and can be stuffed into the rear pocket. I found it very handy for cooler days, evening rides, or when the air gets that chilled snap after a good rain, or when you just need something simple and light to take away the sting. An added benefit is the mesh section along the upper back, which does wonders for ventilation and comfort, and still keeps you warm.

The pants worked well, and didn’t adversely affect my pedaling, although on the right leg, I did need to use a Velcro leg strap on the lower calf to prevent the material from getting too near the drivetrain. They had a short zipper at the bottom to facilitate putting them on, and even my big fat mountain-bike shoes weren’t an issue to pull through the opening. The pants was simple, and besides the lower zipper, they had an elastic waist band with a draw cord and an elastic ankle cuff. They had a decent cut, being wide enough to give me room to be pedaled in and get my shoes on, without any noticeable bagginess. Like any pair of pants, they can droop somewhat, especially after they get in the rain, but a simple tug gets them back into position. I sat down plenty of times on rocks and the ground, huddled under trees during storms, and they were plenty durable and kept me dry.

Bottom Line
The O2 Nokomis Jacket and Pants are comfortable, with a great fit, and are extremely packable, breathable and waterproof. The jacket is full of features, the highlight being its switchability to a vest, which I used countless time in cooler weather and on evening rides. It has many other attributes, including the rear shoulder wide vent panel, excellent breathability for rain gear, a tall collar and a drooped rear (aka the diaper) for additional protection. The pants has a nice simple design, and there were easy to take on and off, even over mountain-bike shoes, and they had a great cut for pedaling in. To complete the ensemble, I recommend the addition of a good waterproof helmet cover, and perhaps some overshoes. This set did an amazing job keeping me warm and dry, and well ventilated in inclement weather, especially in some unbelievable ugly downpours.

I had a few minor quibbles with the jacket, such as the zipper’s snag on the adjacent material, and the sleeve zipper slider can irritate the clavicle area under the shoulder strap, and the front zipper’s bottom closure can come undone. I would love to see an integrated Velcro leg strap on the pants, which would add some great functionality to the product.

Their packability means “Don’t leave home without them!”. The jacket and pants are durable and have a great fit, and of course have excellent breathability and waterproofness, and have plenty of features that are functional, and very bike specific, and the material and build quality are outstanding.


  • Breathability
  • Waterproofness
  • Comfortable
  • Durable
  • Packable


  • Can switch to vest
  • Shoulder wide rear vent panel
  • Rear pocket
  • Good fit
  • Tall collar
  • Rear diaper cover


  • Easy on and off
  • Good cut for pedaling
  • Simple



  • The bottom closure of the front zipper can come undone
  • The detachable sleeve’s zipper slider can irritate the clavicle area under the shoulder strap
  • Hi-Rez color can have subtle stains under shoulder strap
  • Zippers snag on material


  • Need an integrated Velcro leg strap by drivetrain (more of a wish list)

Overall Rating: 4.5 Flamin’ Chili Peppers 


Upon receipt of payment your order will be packed and posted either the same day, or at latest the next working day.

Paypal and credit cards are processed almost immediately, while bank transfers can take 24-48 hours. 

In general we find that deliveries to Melbourne, Sydney, Adelaide, Brisbane metro and VIC regional are made within 1-3 working days. NSW, SA, TAS, ACT and NT take 2-5 working days. Regional QLD, WA and other remote areas will take 5-7 working days.

Please note these are only expected deliveries times and occasionally delays may occur.

We use Australia Post for all of our deliveries except for Bulky Items. For bulky items we use Direct Freight Couriers.



Our internal shipping charge calculator will tell you the cost of your postage prior to your checkout. In most cases buying more than 1 item will result in cost savings to you. 

  • Small items up to 500g cost  around $7 postage. Depending on the weight and size you will get 2 sometimes 3 small items posted for this amount.
  • Most larger items post for about $12 and you will generally be able to add 1-3 small items at no extra charge
  • Once you purchase products over 3 kg in weight there is generally, only a small amount of extra postage charged


You can add smaller items together with bulky items and there will generally be no or a small added postage cost.
Ordering items such as 2 bike cases may not result in any savings due to their volume. Ordering mid-size items like two fluid trainers together will result in very good savings though. You will get your quote for shipping costs before you checkout.

If you have any queries please email us at!

We now ship to New Zealand. For further details please visit our International page here.

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waterproof jacket cycling

3Flow™ Performance Fabrics for O2 Nokomis Waterproof Cycling Rain Jackets

O2 Calhoun, Nokomis and Primary Series gear are designed using Rainshield exclusive 3Flow Performance Fabrics. Engineered to keep you dry, this ultra-breathable fabric features millions of microscopic pores that seal out water, snow and wind while letting your skin breathe so you won’t be drenched in sweat. It’s also thin and lightweight to keep you comfortable in all weather conditions.

About O2 Cycling Waterproof Rain Jackets & Pants

We know cycling. And living in Minnesota U.S.A., we know cycling in some of the most extreme weather conditions you can find. Snow, sleet, rain or shine, we’ve built our O2Rainwear™ to handle it all.

Developed by Rain Shield, Inc., O2 Rainwear is a national biking apparel line offering affordable protection from the elements for anyone who rides — from serious cyclists to casual recreational riders. We’re based in Minneapolis, one of the most active cycling communities in the country. Our own passion for cycling means we get it: we understand why you’re out there, rain or shine, and we know what you need from your gear to keep you going back for more. Since 1997, we’ve been creating O2 Rainwear products to help you make the most of your ride.

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