SKU: 95810551057

Wm's Superalloy Bio Rain Jacket

Sale price$157.47 Regular price$174.97
Save 10%

Pay in installments of $43.74 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Jul 28 - Aug 2

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

Wm's Superalloy Bio Rain JacketWhen speed, weight and packability matter most, the Superalloy Bio Rain Jacket delivers reliable waterproof protection without weighing you down. Designed for trail runners, fast hikers and anyone who wants an emergency shell that's always within reach, it packs into its own pocket and weighs just 155g. Its ultralight construction also makes it an excellent option for many trail running events that require competitors to carry a waterproof jacket as

When speed, weight and packability matter most, the Superalloy Bio Rain Jacket delivers reliable waterproof protection without weighing you down. Designed for trail runners, fast hikers and anyone who wants an emergency shell that's always within reach, it packs into its own pocket and weighs just 155g. Its ultralight construction also makes it an excellent option for many trail running events that require competitors to carry a waterproof jacket as part of their mandatory gear.*

Built with Marmot's NanoPro™ waterproof technology and an ultralight bio-based ripstop fabric, the Superalloy provides waterproof, windproof and breathable protection while taking up minimal space in your running vest, daypack or travel bag. Whether you're chasing a weather window on the trail, travelling light or preparing for unpredictable conditions, it's the jacket you'll be glad you packed.

Its minimalist design doesn't compromise on performance. Fully taped seams, an adjustable hood, water-resistant front zip and a chest pocket that remains accessible while wearing a running vest or backpack provide the protection you need without unnecessary bulk.

For fast-moving adventures where every gram counts, the Superalloy is built to disappear into your pack until the weather turns.

Why It's In Our Pack
  • Exceptionally lightweight at just 155g, making it easy to carry on every adventure.
  • Packs into its own chest pocket for compact storage in a running vest, backpack or travel bag.
  • Ideal for trail runners and fast hikers looking to minimise pack weight.
  • Suitable for many trail running events that require participants to carry a waterproof jacket as part of their mandatory gear.*
  • Waterproof, windproof and breathable protection without unnecessary bulk.
Best For
  • Trail running
  • Ultra running
  • Fast hiking
  • Adventure racing
  • Day hikes
  • Travel
  • Emergency waterproof protection
  • New Zealand and Australian conditions
Key Features
  • Ultralight 12D bio-based ripstop outer fabric.
  • Marmot NanoPro™ waterproof and breathable membrane.
  • 20,000mm waterproof rating / 20,000g breathability rating.
  • Fully seam-taped construction for dependable waterproof protection.
  • PFAS-free Durable Water Repellent (DWR) finish helps water bead off the outer fabric.
  • Packs into its own chest pocket for compact storage.
  • Water-resistant chest pocket remains accessible while wearing a running vest, backpack or climbing harness.
  • Fixed hood with peripheral cord adjustment.
  • Adjustable drawcord hem helps seal out wind and rain.
  • Bonded cuffs with partial elastic provide a secure, comfortable fit.
  • Water-resistant front zip for additional weather protection.
Common Questions

Is the Superalloy Bio Rain Jacket fully waterproof?

Yes. The Superalloy combines Marmot's NanoPro™ waterproof membrane with fully taped seams and a PFAS-free DWR finish to provide reliable waterproof protection when conditions deteriorate.

Who is the Superalloy best suited to?

The Superalloy is designed for trail runners, fast hikers, adventure racers and travellers who need an ultralight waterproof shell that can be carried on every outing.

Can I carry the Superalloy in a running vest?

Absolutely. Weighing just 155g and packing into its own chest pocket, the Superalloy is specifically designed to fit comfortably into running vests, waist packs and lightweight daypacks.

Is the Superalloy suitable for everyday use?

Yes. While it's purpose-built for fast and light adventures, its compact size makes it an excellent emergency waterproof layer for commuting, travel and everyday outdoor activities.

How small does the Superalloy pack down?

The jacket stuffs into its own chest pocket, creating a compact package that's easy to store or clip onto your pack or harness, making it ideal when pack space is limited.

*Always check the mandatory gear requirements for your specific event, as waterproof jacket standards and specifications vary between race organisers.

Product Care: Machine Wash Cold, Use Liquid Detergent, Do Not Use Powdered Detergent, Gentle Cycle, Tumble Dry Low, Do Not Iron, Do Not Bleach, Do Not Dry Clean, Do Not Use Fabric Softener, Rinse Twice, Do Not Store Wet
Center Back Length: 27.5in
Main Fabric: NanoPro™, 100% Nylon, Ripstop, 67g/sqm
Style Number :M15388
Waterproof:YES
Product Weight: 155.0 g
Windproof: YES

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 95810551057

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 10 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
J
Verified Purchase
Jay T
Bozeman, US
★★★★★ 5
Don’t Pass On This One! Get Every Color!
Color: Black, Size: X-Large, Color: Black, Size: X-Large
I always brace myself when purchasing clothing off the internet because size recommendations don’t always hold true. I’m glad I flowed my mind and bought an XL instead of the recommended XXL. It fits perfectly. The quality was better than I expected and the neckline was a perfect height and the size was just right (my neck is a 19”). The cost was better than what’s offered in stores. The stretch material adds to the comfort and it’s lightweight; which makes it perfect for those that are hot alot…like me. (I’m 5’10”/ 260lbs / usually a XXL)
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 27, 2026
M
Verified Purchase
moshe altman
Port Orchard, US
★★★★★ 3
Too short on length on the 4XL
Color: White, Size: 4X-Large
I give it only 3 star as the 4 xxxxl are too short on length. Too bad as i was ready to order more but returning it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 20, 2026
A
Verified Purchase
Amazon Customer
San Leandro, US
★★★★★ 5
Very Comfortable
Color: Navy Blue, Size: Large
Great shirt. Very comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 30, 2026
J
Verified Purchase
Jimmy
Boise, US
★★★★★ 5
Takes a Licking and Keeps on Ticking
Color: Green/Black
I love this watch despite the fact that it is really a toy. I love the look of the watch, I love how lite the weight of the watch is on my wrist, and it really does keep good time if you manage the solar charge properly. Other than looking cool on your wrist, this watch has absolutely no functions other than time keeping. The black plastic bezel is molded into the case and does not turn, so don't plan on using that. The watch has no light, the dial numbers are non-luminous and the hands are very limited in terms of luminosity. No buttons. All you can do is adjust the time and date by pulling out what used to be a winding stem in the good old days. The small tag on the strap with Geographic coordinates shown on it indicate the location of the old Timex manufacturing facility (SW of Waterbury, CT). I have a nice ledge at my bedroom window and it gets good western sun for a good part of the day regardless of the time of year. On this ledge you will find a half dozen solar powered watches (mostly Casio) properly aligned to maximize the charge they may receive each day. Note that the description for this Timex watch specifically states that a lightbulb won't charge this watch. You need direct sunlight for several hours if you want to get more than a 3-week charge into this watch. So, I'll leave you with a couple of tips, my friends; 1.) If you are looking for a first watch to give your outdoorsy oriented Son or Daughter, then give them this one. Why? Because it is cool looking, fairly well built, and it actually works, 2.) After you receive your Timex watch, be sure to keep the display mount it is packaged with. It makes a great fixture to mount your watch on for charging and allows you to maximize the position of the solar cells on the dial so that you can optimize charging time. Have Fun! Jimmy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 28, 2026
N
Verified Purchase
Nuka Shroom Soup
Louisville, US
★★★★★ 5
Excellent value, flawless performance for well over a year and no signs of quitting.
Color: Green/Black
Excellent value, had this for well over a year and it still keeps perfect time, still water resistant. No worries about having to change batteries. Owned a fancy expensive (battery) watch once and the dept. store repair intentionally sabotaged the watch in the hopes I would purchase another from them. Yeah, good luck with that, lost my business forever. This is the 21st century, cell phones are the new time pieces, but solar is totally reliable and Timex makes it happen. Holds a charge for many months, although I prop it in a bright window for a few days every few months or so just to make sure the cells are always fully charged, although it's probably unnecessary, just being over cautious. I haven't actually experienced this watch ever running out of power even after months of use. Damn impressive, as it should be.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 12, 2025

recommand products