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AD1 Motorcycle Pants

SKU: 165

Availability: In stock


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Product Description


The AD-1 is a fully seam taped, unlined, HT600 Denier Nylon three layer GORE-TEX® jeans-cut pant, with full length separating side zips. The outside zippers have full length inner and outer weather flaps to help the pants go on and off fast and keep rain and wind out.

Other details include: A diamond gusset in the crotch for greater sitting comfort; An inner gusset behind the front fly which improves water resistance; The knees have a greater bend around a larger radius (than the Darien pant knees), allowing more freedom of movement. The Scotchlight® reflective ankle tab loop strips are radial, for a natural and secure adjustment around the calf and lower leg. The front pockets have hook and loop secured cover flaps so items inside are secure. (And you won't lose your change or bike keys when the pants are laid over the back of a chair…). A vertical zippered cargo pocket is on top of the right thigh and a horizontal opening pocket to the top of the left thigh. Available in even waist sizes, 30–46 regular and long. An Aerostich Money Belt (#1854) is included with these pants. Black, Grey or Tan. Imported and Made in USA

If you are interested in suspenders (?) we recommend these #1815-1349. Several models and styles are available.

AD 1 Features
AD 1 Pants Owners Guide
Sizing Chart
Sizing Tool
TF Pad Removal and Replacement
Darien vs. Darien Light
Darien AD1 Utility Pants Comparison

Additional Information

Additional Information

More Info
  • TOUGH: HT600 Denier Nylon GORE-TEX® fabric
  • COMFORTABLE: Diamond gusset crotch panel
  • IMPROVED WATER RESISTANCE: Front fly inner gusset
  • FREEDOM OF MOVEMENT: Knees bend around a larger radius
  • IMPROVED REFLECTIVE ANKLE TABS: New radial loop strips
  • COVERED FRONT POCKETS: Hook & loop flap
  • ADDITIONAL STORAGE: Vertical zippered cargo pocket
  • OPTIONAL PROTECTION: Integrated Hook & Loop for Hip Pad attachment


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Customer Reviews (71)

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Great pants.Review by Darrell
The quality is just excellent, the fit is great. I would suggest getting one size larger than you wear in pants just to have some room for jeans under the pants. I did this and am very pleased. You can tell these were designed by riders not fashion designers. Not saying they don't look good they do. Thanks. (Posted on 11/2/15)
Great Pants, comment about fitReview by Bradford
I first purchased Darien jacket and pants about 15 years ago. Finally they were due for replacement. (the fabric and stitching still is fine but zippers, velcro and Gore-Tex gave up). Decided to try the AD1 pants this time. They are great pants and an improvement over the Darien pants in my opinion because of the greater angle at knees and the pockets. I am 6 ft 200 lb.35 - 36 inch street pant waist and 31 inch inseam. The sizing guidance put me at 36 inch for the AD1 waist. My Dariens were 38 and since I ride in winter when clear (Buffalo, NY) i need to have thick pile pants underneath some times. The 38's are great at the waist. I can take in the sides by one or two steps using snaps at the top of the side zipper when wearing thin street clothes. I ride with Combat Touring boots and find that the fit of the pants through the knee and down to the mid calf is just a bit snug but not a problem. (legs are fairly muscular) I believe I got then right size. They are wind and rain PROOF. Great Pant! (Posted on 11/1/15)
good but could be betterReview by willliam
I've had a pair for about a week. The material is stiff, but I expect it to soften up in time. Nice pockets. I like the money belt, but the buckle on the Darien is much more useful. That one you just need to buckle together, This one you have to cinch up each time. The lower legs seems a little too form-fitting and I don't see any way to let them out a bit, to allow more air circulation. Not sure what the velcro strips on the inside lower legs is for. (Posted on 9/24/15)
AD1 pants crash reviewReview by Mike
Very waterproof pants. Easy in and out. Good padding, thankfully. I crashed at about 55mph, loosing front wheel traction on a road hazard and low siding with the bike. I hit hard on my RH hip pad preventing a fractured hip, although I had soreness from the impact on my upper leg muscles which are unprotected. Good results. I was on the RH side of the moto, and slowly spun around 180 degrees with the moto. I was sliding on my side, at first sliding in a forward direction. As the moto spun around I was sliding backward. Coming to a stop, both knees had been dragging on the pavement, and the padding saved my knees. The frightening part is that the leg side leg zipper ripped open as I eventually slid backwards The split zipper exposed my one leg and knee from about mid thigh down to my boots. Fortunately, my knee pad stayed over my knee and no damage to my knee or leg resulted. It was only luck, because if the failed zipper and fully open pant size had slid off my leg or knee, I would have had very severe sliding damage and life changing damage to my knee. I repaired and am using the pants now, but I'm looking for replacement pants with either no leg zipper or else an inside leg zipper similar to the Roadcrafter. From my crash experience, the side leg zipper design is vulnerable to failure during a slide that puts pressure on the zipper. Except for the vulnerability of the leg zipper in a sliding crash, these are excellent pants. (Posted on 9/17/15)
Aerostich Customer ServiceReview by customerservice
The AD1, AD1 light, Darien, Darien light and Utility pants fit some women better with a 'Hip-Seat Ease Alteration' (#263), which adds more curve and room. Also named 'Gail's Gusset' this $75 alteration (new construction price) helps all of these pants fit better, feel better, look better and wear more comfortably on bodies with more shaped hips. See http://www.aerostich.com/alterations for more info and a diagram (scroll down, it's on the right side of the page near the bottom). Please contact us if you have questions about any product or available custom alteration. (Posted on 6/19/15)
women: size up if using hip padsReview by scootergirl
I ordered the regular 30 black. I'm 5'7" w/ inseam 30.5", waist 29, hip 36, a typical women's 8. The function is really great, as all the other reviews state (weatherproof, knee bend comfort, POCKETS!). This review is about fit.

I used with TF5 (thin) hip pads, and it's pretty snug to sit with jeans- sometimes the AD1 snap button pops open, even w/ the belt cinched. Without the TF5 hip pads, they fit perfect. The length is perfect for me.

My next order will be one size up for use w/ hip pads. (Posted on 6/18/15)
Excellent riding pants.Review by Shane
I'm just home from a 200 mile christening ride with my new AD1's and I wanted to take a second to fan the flames of the Aerostich fanfare bonfire. These are great pants! The quality of the craftsmanship is apparent with the first glance. I've paired these pants with a Transit jacket and I have to say that barring any unfortunate mishaps, I likely won't be replacing either jacket nor pants for a very long time.
The pants slid on over a pair of light pants with ease. The armor in a bag, velcro'd inside the knee, leaves one feeling like there must be a better design, but once you're out and on the road they simply vanish. I ordered mine without the left thigh map pocket velcro and think they look much sharper without those fuzzy stripes.
I'm 6' tall barefoot, 165 lbs., and ideally wear a 33x33 when I can find it. I ordered a 34 long. The AD1's are form-fitting around the legs, without being too tight for street clothes, and the waist is only slightly bunched with the snaps in the slimmer position. Again, out on the road these pants fall right into place. It's obvious that these were designed by motorcyclists for motorcyclists.
I have no doubt that the AD1's will prove fully waterproof as is evident by the meticulous and generous use of seam tape.
I'm looking forward to logging many miles in this fine gear. (Posted on 8/29/14)
AD1 pants highly recommended (and size info)Review by Olaf
I've had my new AD1 pants for a few weeks now. The second day out I got caught in the rain riding my new Triumph Bonneville. The AD1's kept me perfectly dry as advertized. The AD1's are comfortable, stylish (for a motorbike pant) and fit very well.

I spent alot of time doing size research online and found less info than I would have liked. Hopefully this little report will help others. Aerostich's generous return policy doesn't refund the high cost of cross border shipping (I live in Canada) and doesn't refund those pesky sales taxes that the Canadian Federal and Provincial govenments charge.

I stand 5'-10-1/2" tall, 180 lbs. 52 years old. So far I don't have a beer belly. I buy my Costco jeans in size 34 waist /32 inseam. With Lee's, Levis, etc I buy the same size. But a tape measure around my waste shows 36". (maybe jeans sizes are optimistic?)

After reading and re-reading the online comments I decided to order my AD1's in size 36-regular with TF5 Transit Impact Hip Pads.

They AD1's waist fits a little bit loose if I wear just my boxers and a pair of merino wool long johns underneath. That's with both side snap buttons done up to take in the waist. The AD1's belt does the rest with one or two minor extra folds forming at the front. The extra room allows for the TF5 hip pads which sit below the waste.

Over top of my street jeans, the 36" AD1's waist fits about right with one of the side snaps let out. But I find the jeans waist band underneath uncomfortable and it's definitely uncomfortable to wear a belt with the jeans. Maybe that will improve as the pants break in. But for now, the merino wood longjohns are the ticket.

The pant length is perfect. Standing up the bottom of the leg just breaks over my riding boots and the knee pads are exactly were they should be. Sitting down on my Bonneville, the pant leg doesn't ride up.

The pants are totally windproof, water proof and are very well made. Highly recommended. (Posted on 5/20/14)
Best Ive usedReview by stephen
I bought these pants 3 years ago to wear on my 40 mile work commute as it was a right pain to get in and out of my riding gear, so I thought these were the solution!

I did a bit of research reading into the sizing, and bought them a size too big, as I was going to wear them over my work uniform. This turned out to be spot on for my needs when the pants arrived.
They were a little stiff to start off with, but after riding In all the British weathers, and through the last 3 winters, they have eased up, and have never leaked!!! (got a wet ankle once from not adjusting the leg properly!)

I can now get into work, and changed into full uniform in a matter of 20 seconds! Perfect for what I wanted. I can wear them all year round comfortably, summer and winter. -5 to +25 they have served me well and by the sounds of it will continue to do so for many more years to come.

Very pleased with a well thought out product. (Posted on 3/16/14)
AD1 Motorcycle PantsReview by Chris
First, the folks at Aerostich are very professional and go above and beyond to assist you. Not really sure of which size I should go with, I went with a 38 Regular. I received the pants and I love them, but I realized I should have gotten a 36 Regular. I had to remove the knee pads as when I stand they were on my shin, not my knees. The pants are awesome and I can't see purchasing anything other than Aerostich in the future. (Posted on 3/4/14)

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Shipping Guide Map
International Orders
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USA Only
ECO Saver delivery times are not guaranteed.
SURFACE and AIR delivery options are guaranteed.
Orders Eco Saver Surface Priority/3day 2 Day* 1 Day* International Air***
under $ 50 $4-$8 $8-$13 $14-$19 $20-$26 $30-$36 $ 20.95-$ 60.95
$ 51-$ 100 $7-$12 $11-$17 $17-$23 $24-$30 $36-$42 $ 25.95-$ 80.95
$ 101-$ 200 N/A $14-$19 $21-$27 $28-$36 $42-$50 $ 30.95-$ 100.95
$ 201-$ 400 N/A $16-$21 $25-$31 $36-$42 $50-$58 $ 40.95-$ 120.95
Over $ 400 N/A $18-$23 $29-$35 $42-$48 $56-$66 $ 60.95-$ 150.95
  • Surface transport only to US addresses.
  • *SATURDAY DELIVERY: Add $15 to 1 Day or 2 Day service.
  • **Add $15 to 1 day or 2 day for Alaska, Hawaii, and Puerto Rico. (Extended area charge of $12 may apply to rural areas.)
  • ***Call for international rates. Depending upon country, most charges will be between these rates. Duties and Taxes are not included in the shipping price. FedEx may charge brokerage fees for some countries. You will be responsible for these charges.
  • AFO/APO Addresses: Orders will be shipped Priority Mail.

All in-stock Aerostich products and RiderWearHouse Catalog items ordered before 2pm CST will be shipped within 2 business days. (If a specific size and color of Roadcrafter suit is not in inventory, we will notify you with an estimated delivery date. Production time varies.) All standard Aerostich items may be sent back for a refund, but the item(s) being returned must be in new condition.

Worldwide Orders

Buying direct from the United States is easy and convenient. Credit cards, fax machines, direct dial telephone service, and air shipping allow easy transactions between countries. For estimates on Duty & VAT costs, visit http://www.dutycalculator.com/calculation/, a third party import duty calculator.

We do not charge or cover duties, taxes or brokerage fees. FedEx may charge brokerage fees for some countries. You will be responsible for these charges.

Gear: Fashion and Style vs. Equipment

There’s a lot of ‘noise’ in the rider-gear market space the Aerostich Darien jacket occupies, about how ‘new and improved’ similar jackets are. Other companies making these kinds of jackets restyle them and revise them every year or two, telling riders that if three zippers is good, six or seven zippers is better.

What all the ‘noise’ amounts to is fashion and style being presented in the guise of technology which supposedly is rapidly ever-advancing in this area. Except armored waterproof textile jackets are not the same kind of technology as computers, or even motorcycles. Seven zippers are not better than three, if only three are functionally needed. What counts is ease of use, durability, fit and function. The pioneering of this type of gear was done by us twenty and thirty years ago. (Combining lightweight breathable-waterproof highly abrasion-resistant synthetic fabrics, seam-sealing, ergonomically more useful vents and pockets, reflective materials and energy-absorbing foams and plastics.)

Since then, just like added decorative stitching on branded ‘designer’ jeans turns a pair of useful, comfortable and durable work pants like Levi’s 501’s into a fashion, all the noise about new tech in jackets like the Darien is mostly fashion BS masquerading as technological improvements. It’s not real.

Classic black leather ‘zipper’ biker jackets have been popular world-wide for many decades. There are versions at many price points and in some circles this jacket has become a fashion cliché having little to do with actually riding a motorcycle. But for many riders it remains a great equipment choice that has changed only very slightly over the years — because it works so well. You’ll find the original versions of these jackets at Langlitz, Shott and several other pioneering leather companies. Similarly, you’ll find the original British waxed cotton Belstaff and Barbour rider’s jackets and pants still being produced in their original patterns because they remain excellent functional rider’s gear.

The ‘latest-greatest’ is usually more style and fashion based, and original equipment is nearly always more utility-tool based. It does not change from year to year any more than Levi’s 501’s. Many riders are unlikely to admit they are buying ever-changing fashion and style when they believe they are getting some kind of improved technology, but that is a truth. None of the regularly restyled ‘teched-out’ sportswear for riders comes in as many closely-spaced sizes as the Darien does, and none is as functional and equipment-y as a Darien.

The Aerostich Darien is the original advanced technology breathable-waterproof impact-armored synthetic (nylon) textile rider’s gear, and just like the above-mentioned other examples of specialized rider’s clothing, it is similarly more equipment than fashion. For historical reasons.

Dariens are available ‘off-the-rack’ in eleven closely-spaced graded sizes and six colors. Complete repair service and several optional fit alterations insure years of superior service.

"The Darien and AD1 pants fit a little different…The Darien's fit like khaki 'Docker'-type chinos and dress pants. They have a straight waistband and a higher rise than jeans. The AD1's have a lower rise and a slightly conical waistband that is angled a bit lower in front. So these fit more like old-school denim jeans. I slightly prefer the AD1's fit."

- Mr. Subjective.

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