Sustainable Materials
Superalloy Bio Rain Jacket
Regular price
- Unit price
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Sustainable Materials
Superalloy Bio Rain Jacket
Regular price
- Unit price
- / per
Size guide
Men's Clothing Size Guide
Find your Marmot fit using the size charts below. All body measurements are in centimetres, not garment dimensions.
Men's Tops - Regular Sizing
For jackets, fleeces, shirts and other upper-body clothing.
| Measurement | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Chest (cm) | 81-89 | 89-97 | 97-104 | 104-112 | 112-119 | 119-127 |
| Waist (cm) | 64-71 | 71-79 | 79-86 | 86-94 | 94-102 | 102-109 |
| Hip (cm) | 79-86 | 86-94 | 94-102 | 102-109 | 109-117 | 117-124 |
| Sleeve (cm) | 79 | 81 | 84 | 86 | 89 | 91 |
Men's Bottoms - Regular Sizing
For pants and shorts labelled XS through XXL.
| Measurement | XS | S | M | L | XL | XXL |
|---|---|---|---|---|---|---|
| Waist (cm) | 64-71 | 71-79 | 79-86 | 86-94 | 94-102 | 102-109 |
| Hip (cm) | 79-86 | 86-94 | 94-102 | 102-109 | 109-117 | 117-124 |
Men's Bottoms - Numerical Sizing
For pants and shorts sold in numerical waist sizes.
| Size | Waist (cm) | Hip (cm) |
|---|---|---|
| 28 | 69-74 | 84-89 |
| 30 | 74-79 | 89-94 |
| 32 | 79-84 | 94-99 |
| 34 | 84-89 | 99-104 |
| 36 | 89-94 | 104-109 |
| 38 | 94-99 | 109-114 |
| 40 | 99-104 | 114-119 |
| 42 | 104-109 | 119-124 |
| 44 | 109-114 | 124-130 |
Men's Pants - Inseam Lengths
| Length | Inseam |
|---|---|
| Short | 76 cm / 30 in |
| Regular | 81 cm / 32 in |
| Long | 86 cm / 34 in |
Inseam lengths are manufacturer's reference lengths. Not all pants are available in every length.
Men's Big & Tall Sizing
For garments specifically labelled Big or Big & Tall.
| Measurement | 1X | 2X | 3X | 4X |
|---|---|---|---|---|
| Chest (cm) | 117-127 | 127-137 | 137-147 | 147-157 |
| Waist (cm) | 102-112 | 112-122 | 122-132 | 132-142 |
| Hip (cm) | 109-114 | 119-124 | 130-135 | 140-145 |
| Sleeve (cm) | 89 | 91 | 94 | 97 |
Big & Tall: Tall versions offer additional length and have separate sleeve and fit measurements. Refer to the individual product's sizing information.
How to Measure
- Chest: Measure under your arms and around the fullest part of your chest.
- Natural waist: Measure around the narrowest part of your waist, where your body creases when bending sideways.
- Hips: Stand with your feet together and measure around the fullest part of your hips.
- Sleeve: Measure from the centre back of your neck, over your shoulder and down to your wrist.
- Inseam: Measure from the crotch seam to the hem of a pair of pants that fits you well.
Finding Your Fit
Marmot offers different garment fits, including Athletic, Semi-Fit, Regular and Relaxed. The intended fit can vary between products, so check the individual product description before choosing your size.
Please note: These charts are based on Marmot's official size guide. Measurements are rounded to the nearest centimetre. Garment-specific sizing may vary.
Availability
Quantity selected exceeds current stock
G.S.T included.
Description
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: 29.5in
Main Fabric: NanoPro™, 100% Nylon, Ripstop, 67g/sqm
Style Number: M15378
Waterproof: YES
Product Weight: 165.0 g
Windproof: YES
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