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Alpinestars ST-1 Waterproof Jacket

$279.95
COLOR: Black
SIZE
Availability: Translation missing: en.general.icons.icon_check_circle icon 17 in stock, ready to be shipped

The ST-1 Waterproof Jacket is designed for riders seeking all-weather performance and ergonomic comfort, featuring a fixed waterproof liner and detachable thermal liner for versatile warmth. With modern style and adventure-touring-inspired details, the jacket offers optimal mobility with pre-curved arms and ergonomic elbows. Vent panels on the chest enhance airflow for improved breathability, while expandable cargo pockets provide practical storage. Paired with the ST-1 WP Pants, this jacket delivers a complete road touring outfit for wet and unpredictable riding conditions.

  • Comfort fit with pre-curved arms and ergonomic elbows for extra freedom of movement
  • Redefined, modern shoulder design with Alpinestars stylish branding gives the jacket an adventure touring inspired look
  • Fixed waterproof liner offers wet-weather performance
  • Vent panels on the chest provide cooling airflow, creating an increased surface area for air exchange, improving breathability and offering optimal riding comfort
  • Ergonomic cargo pockets’ slim design, with built-in expansion, provides added storage capacity
  • Detachable thermal liner, 80g torso, 80g sleeves with snap button connections to anchor the liner to the jacket
  • CE Level 1 rated Nucleon Flex Plus elbow and shoulder armor for effective impact protection
  • According to European statutory law the CE mark is a conformity requirement for the marketing of this product. The following standards apply to this product: Fully CE certified motorcycling garment to CE – Category II EN 17092-4:2020 – A Class. CE Level 1 Nucleon Flex Plus impact protection, Category II EN 17092-6:2020 – C Class Impact

MADE WITH PFAS CHEMICALS

These jackets are sold in US based “alpha” sizes, so selecting a size is basically pretty easy. The size Medium and XL jackets fit Huey and Dewey, our Fit Check mannequins very nicely! Also, we checked several sizes with a tape. We found the sizing to be comparable to standard men’s clothing sizes. So our primary advice would be to choose the size you normally wear in men’s clothing.

Alpinestars publishes a super-complicated size chart which can be used to pick a size based upon your chest and waist. We’ve condensed their chart down to make it easy to read (see below). You can use this size chart to check your own measurements against the size chart to make sure the size you select will work. Choose a size that is big enough for both your chest and belly.

Jacket Size Chest Range Waist/Belly Range
Small 38 36
Medium 41 39
Large 43 41
XL 46 44
XXL 49 47
XXXL 51 49
XXXXL 53 51

Need help measuring? Get it here.

Our Two Cents

The ST-1 Waterproof jacket from Alpinestars is a waterproof, minimalist, adventure touring jacket designed for year round comfort and optimum wet weather performance. Overall construction is a combination of a fixed waterproof membrane liner, a removable thermal liner, and a 600 D poly fabric blend. The combination of materials and the included CE LEvel 1 Nucleon Flex Plus armor at both the elbow and shoulders gives the ST-1 Jacket a CE Level A rating overall for impact and abrasion resistance. Additionally there are pockets for optional back and divided chest protectors that are purchased separately. The ST-1 Jacket is Tech-Air® ready.

Looking at comfort and convenience there are velcro based adjuster tabs at the waist, button tabs at the bicep, and additional velcro adjusters at the cuff allow you to customize the fit of the jacket. Looking at pockets there is an A-symmetrical pocket on the front chest, there are fold over, velcro closure main pockets on the front (usually when you have fold over top loading/closing pockets on the front you lose hand warmer pockets, but in this caste there are handwarmer pockets underneath the top load pockets giving you the best of both worlds, I love dual function pockets like that). There is also one large, kangaroo pouch like pocket on the back that has a velcro closure and then on the inside the jacket features one simple mesh pocket on one side with a waterproof, zipper closure pocket on the other side. There are no pockets or passthroughs on the removable internal thermal liner. Speaking of liners, the interior of the main shell is also lined with a nice mesh liner for added comfort.

Moving back to the outside, the main closure is a large zipper but it is protected/covered by a flap that is held down by velcro, there is also a velcro adjuster at the collar. Reflective bits are included at the top of the chest but surprisingly there are none on the back. Another thing strange about the back is that the front features vents on the chest just above the reflective spots but there isnt an exhaust vent on the rear. The ST-1 jacket also features both a long and short connection zipper to connect to the ST-1 pants as well as other Alpinestars pants. Last pieces to note are that there is an extended back for optimal coverage as well as some really nice sticked designs on the back, shoulders and biceps areas adding additional style to the jacket. And speaking of style I think this is a really good looking jacket that fits well and comes in four different colors, black, dark blue/black/bright red, ice gray/black/yellow fluo, as well as dark khaki sand/ black/ red fluo, in my opinion all four colors look great, but the gray/hi viz looks especially good in person.

Overall sizing is comfortable, I would call it a regular fit and as size XL fit me just like it should as it’s the size I normally wear so the suggestion here is to just size like you normally do. Overall I think the ST-1 is an excellent jacket that looks good, performs well in wet weather and has solid protection with Level 1 armor and a CE A rating. Definitely worth checking out. :: Damir 1/3/25