Sigma gives you year-round protection from the elements combined with maximum product circularity – it’s fully recyclable at the end of its life. It’s a lightweight and breathable 3-layer jacket for all day comfort. A versatile hardshell, use it as part of a layering system to tick off Wainwrights in autumn or stash it in your pack to fend off summer showers in the hills.
- 3-layer construction for ultimate wet weather performance
- Next-to-skin comfort thanks to a soft-touch polyester knit backing fabric
- 10K MVTR fabric and mesh lined pockets to keep cool on the move
- Fully recycled and recyclable at end of life, finished with a PFC-free DWR
"We designed Sigma with circularity in mind. When it eventually comes to the end of its useful life (hopefully in many, many years’ time) most of the jacket can be recycled, rather than end up in landfill. By choosing a mono-monomer fabric construction, even down to the pocket bag mesh, we’ve made it as easy as possible to close the loop.
But we’ve not scrimped on performance to achieve this. Sigma has a 3-layer construction that’s fully waterproof and highly breathable for use in all seasons and all weathers. It’s also got all the features you need for a day on the hill like a map pocket, adjustable, wired-peak hood, semi-elasticated cuffs and soft touch fabric for next-to-skin comfort. Sigma will shrug off showers and storms alike."
Ronnie, Clothing Design Manager
- 3-layer fully-recycled polyester fabric
- Single polymer construction is easily recycled at end-of-life
- YKK AquaGuard® zips for improved protection
- Low profile semi-elasticated cuffs work well with gloves
- Breathable fabric for comfort when working hard
- Map-size pockets with mesh lining for easy venting
- Soft, quiet fabric with mild stretch for comfort while moving
- Adjustable hood with wired peak, rear drawcord and elasticated opening
- 3-year Alpine Bond
Fabric: 140gsm 50D polyester ripstop, 100% recycled
DWR: 100% PFC-free
Hydrostatic head: 15,000mm
400g (size M)
Fabric: 100% recycled and recyclable nylon
DWR: 100% PFC-free
Sustainability and Product Care
Sigma uses a 100% recycled polyester fabric using a single polymer meaning it can be easily recycled at end-of-life.
Sigma has a completely PFC-free DWR treatment on its outer fabric. PFCs are potentially harmful and have been found to build up in the environment. We don't like the sound of that and are one of the first outdoor brands in the world to eliminate them from our range.
Where it's made
Our products are made in the best factories in the world. We know the factories personally and they have all signed up to our Code of Ethics in our supply chain. This includes the Ethical Trading Initiative base code, fair pay, safe working environments, no child labour, no modern slavery, no bribery or corruption, no materials from conflict zones and humane farming methods.
Reducing our carbon footprint
We are carbon neutral under PAS2060 and offset our Scope 1, Scope 2 and Scope 3 operations and transport emissions. We recognise that offsetting is not part of the solution but a point to pass through on a journey to Net Zero. Carbon Neutral is just a step in that journey.
We have joined the Science Based Targets Initiative which sets independent targets for us to achieve to do our bit to limit global warming to 1.5°C. Our targets are to halve our Scope 1 and Scope 2 emissions by 2025 based on 2018 base year and reduce our total carbon intensity by 15% every year to achieve genuine net zero by 2050.
End of life
When your partnership with this product is over send it back to us and we will pass it on to someone that needs it through our Continuum Project.
Wash: 30˚C, delicate cycle at or hand wash with lukewarm water.
Dry: Line dry or tumble dry on low heat.
Iron: Use a cool iron to reactivate the DWR.
Caring for your DWR
To keep your jacket’s DWR treatment in good condition, wash it regularly in pure soap or a specialist cleaner. You may also need to refresh the treatment once or twice a year dependent on usage. Use a spray-on reproofer to maintain your jacket's wicking ability.
We have dedicated Repair Stations in our stores and we're fully equipped to breathe new life into your old kit. This includes spare parts, patches, new zips and wash and reproofing of your down and waterproofs. Pop into any store or contact us online for more info.
If one of our products doesn't meet your expectations upon delivery, or if during its lifetime it doesn't live up to the demands placed on it, please return it to us for repair, replacement or refund. Find out more about our Alpine Bond.
Standard delivery to UK addresses is free over £50.
Next Day deliveries will be shipped same day if you place your order before 2pm Monday - Friday.
If you are not happy or have changed your mind, you can return your unused product within 123 days of placing the order for a refund.
Simply return it to us, free of charge, with all the original packaging.
Men's waterproof jacket size guide
|Size chart (inches)
|Size chart (cm)
How to measure
This size chart indicates the body measurements our garments are designed to fit. Measure yourself as described below and use the size chart to find your size.
Measure around your chest at the widest part. The tape measure should pass under your arms and be level from front to back.
Measure around your waist at the narrowest point.
With your arms relaxed by your side, tilt your head down and ask a friend to measure from the bone at the base of your neck, over your shoulder and down your arm to the fold at your wrist.
Close fitting designed to conform to your body.
Slim and slightly contoured but not form fitting.
A comfortable fit that's not too tight, nor too loose.
A looser fit with a bit more space but not too baggy.