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Alpinestars AST-1 WP Pants
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  • Alpinestars AST-1 WP Pants - Black
  • Alpinestars AST-1 WP Pants - Black

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$199.95

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Video Reviews (2)

Alpinestars AST-1 WP Pants Videos

Alpinestars AST-1 Waterproof Pants

The Alpinestars AST-1 Waterproof Pants are an essential piece of kit for anyone who commutes daily or rides distance. The baked in waterproof membrane is affixed to the outer shell of the pants and not only keeps water out, but also allows moisture buildup to evaporate. Pre-curved legs, CE knee protectors and plenty of reflective accents give you all the essentials for any type of riding in any type of weather.

Features:

  • Multi-material main shell construction
  • CE certified knee protectors
  • Internal knee compartment allows adjustments of protection to fit it various leg lengths
  • Fixed waterproof and breathable membrane
  • Pre-curved leg construction for enhance fit and comfort in the riding position
  • Hand pockets
  • Hip pad compartments with PE comfort padding
  • Integrated high visibility reflective graphic details improve rider visibility in varying light conditions
  • Waist adjustments belt for precision fit
  • Waist connection zipper for secure integration with Alpinestars riding jacket
  • Premium YKK zippers
4.5 / 5
Bang For The Buck
3.5 / 5
Protection & Durability
3.5 / 5
Features
3.5 / 5
Comfort
4.5 / 5
Style
4 / 5
Air Flow
3.5 / 5
Fit
Small
 
Large

Alpinestars Men's Pant Sizing

Sizing Notes!

Alpinestars numerical sizes displayed on our website are in Euro sizing.

Euro Alpha US Pant Size Waist (cm) Hips (cm) Thigh (cm) Inseam (cm) Height (cm)
44 XS 28 72-76 87-91 52-53 75-76 164-167
46 SM 30 76-80 91-95 54-55 77-78 168-171
48 SM-MD 32 80-84 95-99 56-57 79-80 172-175
50 MD-LG 34 84-88 99-103 58-59 81-82 176-179
52 LG 36 88-92 103-107 60-61 83-84 180-183
54 XL 38 92-96 107-111 62-63 85-86 184-187
56 XL-2XL 40 96-100 111-115 64-65 87-88 188-191
58 2XL 42 100-104 115-119 66-67 89-90 192-195
60 3XL 44 104-108 119-123 68-69 89-90 192-195
62 3XL-4XL 46 108-112 123-127 70-71 91-92 196-199
64 4XL 48 112-116 127-131 72-73 91-92 196-199

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How To Measure

W Waist Measure around your natural waistline, around the top of the hip bones, inline with the navel while keeping the measuring tape parallel to the ground.
HP Hips Measure the circumference, from pelvic bone to pelvic bone, at the widest part of your hips below the waist.
I Inseam Measure from the highest point of your crotch down to your ankle, along your inner leg.
H Height With no shoes on, stand with your back against a wall and your feet together. Measure from the floor to the top of your head.
T Thigh Measure the circumference of your thighs at the widest point, while in a seated position, with your knees bent to a 90° angle.
Product Style RevZilla Item # Manufacturer Product # Availability
Black / SM 1063115 3226116-10-S Available: Requires 1-3 business days lead time prior to shipment
Black / MD 1063116 3226116-10-M In Stock: Ships next business day
Black / LG 1063117 3226116-10-L Available: Requires 1-3 business days lead time prior to shipment
Black / XL 1063118 3226116-10-XL Available: Requires 1-3 business days lead time prior to shipment
Black / 2XL 1063119 3226116-10-2X Available: Requires 1-3 business days lead time prior to shipment
Black / 3XL 1063120 3226116-10-3X In Stock: Ships next business day
Black / 4XL 1063121 3226116-10-4X Available: Requires 3-5 business days lead time prior to shipment

Shipping

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Please see our International Orders page for orders shipping outside the US.

We show real-time availability on this product page when you select the size/color item you want.  Most items will ship the same business day an order is placed,however if an item requires additional processing time a message will be shown indicating such.

See our full Shipping Policy for further details.

Returns

If your order arrives and it is not right, we will we'll fix it, NO NONSENSE, we promise.

Doesn't fit or just not happy with it? You can return any new, unused and unaltered item within 30 business days of delivery receipt of your item. We will issue a full refund to your original payment method.

See our full Return Policy for all of the pertinent details.

Write a Product Review for a chance to win our monthly $100 giveaways.
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4.5 / 5.0
2 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
1
1
0
0
0
Bang For The Buck
3.5 / 5
Protection & Durability
3.5 / 5
Features
3.5 / 5
Comfort
4.5 / 5
Style
4.0 / 5
Air Flow
3.5 / 5
Fit
Small
True
Large
Bang For The Buck
4 / 5
Protection & Durability
4 / 5
Features
4 / 5
Comfort
5 / 5
Style
4 / 5
Fit
Small
True
Large
Air Flow
4 / 5
Great purchase
Comfortable pants that protect my legs from wind, gravel, dirt, you name it. Even better, they zip into my jacket for more riding comfort and safety. Highly recommended.
February 28, 2017
Bang For The Buck
3 / 5
Protection & Durability
3 / 5
Features
3 / 5
Comfort
4 / 5
Style
4 / 5
Fit
Small
True
Large
Air Flow
3 / 5
Good, but not quite waterproof
I bought these in 2012 (not on revzilla) and use them for daily commuting. I've liked them overall, but they aren't quite waterproof. I ride in the rain often (Seattle) and I've always gotten wet on my inner thighs where they meet my tank/seat. If its hard enough my crotch gets nice and wet too.

I've never really gotten cold in them though and only got hot on 90 degree plus days. They've been comfortable as well.

The stitching on the zipper on the front popped after a few years.
March 11, 2017
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Have a functionality, fit, or otherwise product-specific question about the Alpinestars AST-1 WP Pants? Ask it here! If you have a customer service or shipping question, please direct it to our Customer Service department.

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Browse 4 questions Browse 4 questions and 5 answers
Why did you choose this?
RevZilla Store
Water proof. Hope it works.
Wallace F on Nov 10, 2015
Water proof. Hope it works.
Wallace F on Nov 10, 2015
must have in wa state, will wear for trips, and whenever weather is iffy...
Edward L on Oct 26, 2015
must have in wa state, will wear for trips, and whenever weather is iffy...
Edward L on Oct 26, 2015
Can these be used as " over pants?"
A shopper on Sep 3, 2015
BEST ANSWER: I personally cannot they are very tight in the quad area. I do bodybuild so finding pants is hard for me. You may be able to if you size up as my waist and calves are very spacious. Just depends on your body type.
Can I where these over my pants/jeans ?
Greg D on Sep 15, 2015
BEST ANSWER: Yes. But I would suggest sweats or just underwear.
what hip pad armor should I purchase to use replace the foam pads that come I these? Thanks
Edward L on Oct 25, 2015