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A ninja is a master of all things.

You'll use the Airblaster Men's Merino Wool Ninja Suit for more than just skiing or snowboarding. Whether you're a master mountaineer or an apprentice learning the ropes of the alpine dojo, you will appreciate the wonderful warmth, superior moisture management, and funk-fighting skill set of the miraculous merino wool fibers and fabulous four-way stretch Lycra material.

Merino wool is renowned for its insulating properties, extremely soft feel, and natural odor resistance, and it's blended with a touch of Lycra for extra stretch so you can move freely. The fit is next-to-skin to help it wick moisture more efficiently. A seven panel form-fitting hood covers up your dome on extra cold days and thumb holes in the cuffs prevent snow from getting in your sleeves. There's no need to worry about what happens if you need to use the bathroom when you're at the mountain—a 350° waist zipper makes it easy to take care of business without having to completely undress.

  • Merino wool Lycra blend
  • Naturally antimicrobial
  • Form fit
  • 350° waist zipper
  • Thumbholes

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Airblaster Merino Wool Ninja Suit - Men's

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Here's what others have to say...

4 5

My 'go to' base layer

  • Familiarity: I've used it several times
  • Fit: True to size

It's merino wool so doesn't smell. Stops any exposed bits of flesh between top and bottom. Access for answering the call of nature is easy. Only 3 weeks in it so far so can't comment on durability. Points to note:
It is a fairly thin wool, so don't expect it to be super chunky. Follow the size guide - I'm normally a small, but the guide suggested a medium for me at 5'7" / 150lbs and this was correct. I have selected 'true to size' based on the recommended fit, but bear mind that you may be recommended a size larger than you'd expect.

5 5


Put it on, cleared an ice dam, fixed a broken gutter, unfroze an outdoor drain, cleaned the chicken coop, and picked up a perscription for the wife - if you're a new dad this winter, this is exactly what you need for running around like a maniac trying to get everything done.

5 5

Number Two Ninja

  • Gender: Male
  • Familiarity: I've used it several times
  • Fit: True to size
  • Size Purchased: xxl

Taking a break from our last day of skiing for the 2014/2015 season atop the 2018 Winter Olympics Site in Pyeongchang, South Korea. There was snow on the mountain, just not at that spot where the picture was taken.

Poler Red Airblaster Merino Ninja Suit is evident.

I use it under my helmet instead of a beanie and neck gaiter.

Number Two Ninja
5 5

looks funny but hella warm

  • Fit: True to size

i recently recieved this as a gift for 6'0 about 150..i got the medium because i was worried about the length..size was perect..fits like a glove with alittle room aroun the crotch...Now i really put this to the test..on a recent trip to vermont where the lows were single didgets to around 15 below..i wore just my ninja suit,insulated ski pants,top fleece and my insulated ski jacket..and i felt fine the whole day...well worth the money in my opinion...i dont think my army polypro wasnt going to cut it out there

5 5

No stank.

This really is the best long underwear on the planet. I work at a resort, wearing my ninja suit 40 hours a week (sometimes more, because its also the best pajamas on the planet) This thing REFUSES to stink. I have owned mine for a year, and just washed it for the first time, even though it smelled like a boquet of freshly cut chrysanthimums. You will stay warm, you will stay odor free, you will never want another base layer. I'm 5'9, 130lbs, small is perfect with extra room

5 5


  • Familiarity: I've put it through the wringer
  • Fit: True to size

I use the ninja suit for EVERYTHING. Once the colder weather in Utah hits... mountain biking, hiking, fly fishing, snowboarding, camping... it goes everywhere with me. The merino wool is a must.

I'm 5'10, 160 lbs and medium is perfect.

Unanswered Question

I am 5'11 and 200 pounds. Will a medium fir or should I go for a large due to my weight, (big chest and tummy) normal proportions else were

5 5

comfortable as hell

  • Familiarity: I've used it several times
  • Fit: True to size

super warm. super comfortable. easy to maneuver in the restroom. I'm 6'2" 175lbs and i bought the large and it fits perfect. just long enough and fits well in the arms and shoulders.

5 5

My Ninja!

  • Familiarity: I've put it through the wringer
  • Fit: True to size

LOVE LOVE LOVE it! This is probably the best thing that has ever happened to me right next to masturbating and beer! If you areon the fence about buying these get right the hell off and do it you wont be disappointed! These things will keep ya toasty warm all day long and after a week of riding wont even smell bad! I wear mine almost everyday! Wool is the only way to go! I am 6 foot 1 weigh 175 and the Large fits me Perfectly!

Unanswered Question

I'm 5ft. 4 inches & weigh 175 lbs what size should I get - I've wide hips / a pear shape .

5 5

B-A-A-A-A-A-D ass Ninja Suit!

One of my most tried and true, must-have pieces of winter gear ever! And fall and spring too I might add. THe design of the Ninja Suit is really dialed. The hood is key, easy on, easy off, stretchy and fits perfectly, great for on-th-fly temp regulation. One piece design is awesome, seals out cold air or snow 100x better than separates (top + bottom), 4-way stretch material is unrestrictive and comfy. How to go to the bathroom, #2 for guys and both for ladies? Its so easy. I'm pretty sure its faster than separates, no untucking, re-tucking. Just unzip the waist / hip zip and sit or squat!! Anyway, a Ninja Suit is a MUST HAVE, and the MERINO version is 110% awesome!!

I'm 5'7" 175 and wear a medium. It fits well. I'd say they run 1/2 size large, at least if you want it snug. But I recommend having a little room in it, as you'll want to wear your Ninja Suit solo to your apres activity of choice.

Layering: Normal winter day, I wear mine with a thin merino T and boxer briefs underneath. That is enough heat for me 99% of the time, but its generally no colder than 20F where I live. Also, with the under layers, I don't have to wash the Ninja Suit that way for a loooong time.

5 5

The Best Baselayer Ever

  • Familiarity: I've put it through the wringer
  • Fit: True to size

These things are amazing! I used to have the normal ninja suit but I found the cost of the merino was well worth the extra days without smell and wider range of temps I could use it in. The one piece keeps you from ever having to experience snow touching skin. The fit and design give it the right amount of stretch where you need it. I was skeptical of the waist zip but after giving it a try, it really functions well for using the bathroom. When it gets really cold I'll throw on a fleece and put the hood on under my beanie. I'm 6'1", 165 lbs and the large fits me perfectly.

5 5

Literally the best around

  • Familiarity: I've put it through the wringer
  • Fit: True to size

I am on my 3rd Airblaster Ninja Suit. I purchased my first one 6 years ago and have NOT worn a 2-piece baselayer since. I will wear my Merino Ninja Suit with just a shell on hill from 20F to 45F and be perfectly comfortable. Under 20F, I'll throw on a flannel or sweater and be totally comfortable - still with just a shell. This is a truly versatile and essential product. Also, with the Merino Wool, I only have to wash it every 10 or so uses, which is very convenient. Just hang dry to get the stank out. I am 6'2" and 205 lbs, I wear an XL, but could wear a Large if I wanted it to be real snug. The stretch of the fabric is quite nice, so size selection depends more on personal fit preference. Lastly, the waistband zipper is perfect for pooping, have never had an issue and it is quite easy / quick to use without even taking off your jacket.

what size would you pick at 5'8" 150lbs? size chart suggests a medium but i'm normally a small...

Best Answer Responded on

Hey Ben A,
The medium in this suit would fit you best. The small would be just shy of the length you would need. The medium should fit you well.

Responded on

Ben, did you get the suit? How does it fit? I am 5'7" 146lbs. I'm looking for the same but not too loose.

Responded on

Yes - medium was spot on for me. General fit on me was such that I was filling it out just to take out the slack, but it wasn't at a point where it was actually stretched. I'd be concerned about the back length on a small when sitting. Haven't washed it yet so don't know if it will shrink at all. I'd go for the Medium if I were you.