Men's Waterproof Jacket Sizing
UK S M L XL XXL
Chest
Inches
CMs

37"
94

40"
102

43"
109

46"
117

49"
124
Waist
Inches
CMs

30"
76

32"
81

34"
86

36"
91

38"
97
Sleeve
Inches
CMs

33"
84

34"
86.5

35"
89

36"
91.5

36.5"
92.5
EU
USA
46
36
48
38
50
40
52
42
54
44

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:
Chest - measure around your chest at the widest part. The tape measure should pass under your arms, and be level from front to back.
Waist - measure around your waist at the narrowest part.
Sleeve - 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.

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:
Chest - measure around your chest at the widest part. The tape measure should pass under your arms, and be level from front to back.
Waist - measure around your waist at the narrowest part.
Sleeve - 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.
Fit Guide
Tight Slim Regular Relaxed
Close fitting designed to conform to your body shape. 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.
Fit Guide
Tight Slim
Close fitting designed to conform to your body shape. Slim and slightly contoured but not form fitting.
Regular Relaxed
A comfortable fit that's not too tight, nor too loose. A looser fit with a bit more space but not too baggy.

Standard delivery to UK addresses is free over £29.


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.

Description

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

Designer’s notes

"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

Highlights

Durable rain protection

3-layer construction with PFC-free DWR, 15,000mm HH

Next to skin comfort

Soft-touch polyester knit backing fabric for comfort on bare skin

Made for movement

Breathable fabric with 10K MVTR and mesh lined pockets to keep cool and comfortable while moving

Planet friendly performance

100% recycled fabric using a single polymer, fully recyclable at end of life
Features

Product overview

  • 3-layer fully-recycled polyester fabric
  • Single polymer contruction 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

Technical details

Fit

Regular

Construction

Layers: 3
Fabric: 140gsm 50D polyester ripstop, 100% recycled
DWR: 100% PFC-free

Performance

Hydrostatic head: 15,000mm
MVTR: 10,000g/sqm/24hr

Weight

400g (size M)

Sustainability

Fabric: 100% recycled and recyclable nylon
DWR: 100% PFC-free

Origin

China

Designer‘s notes

"We designed the Sigma with circularity in mind, so that when it eventually comes to the end of it’s useful life (hopefully in many, many year’s time) the majority of the jacket could be recycled, rather than end up in landfill. By choosing a mono-monomer (try saying that fast!) fabric construction, even down to the pocket bag mesh, we’ve made it as easy as possible to close the loop. Some elements like the zips and cord aren’t yet recyclable, which is where the challenge for future development lies. No one said it was easy…"

Designer‘s notes

Sustainability and Product Care

Environmental impact

Recycled and recyclable material

100% recycled polyester fabric using single polymer meaning it can be easily recycled at end-of-life

PFC-free DWR

Sigma uses a PFC-free DWR treatment on its outer fabric. PFCs are potentially harmful and have been found to build up in the environment

Sustainability


Recycled materials

Sigma uses a 100% recycled polyester fabric using a single polymer meaning it can be easily recycled at end-of-life.


PFC-free DWR

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.

All our factories sign up to our Code of Conduct. Find out where we make our product by visiting our Factories of Alpkit factory zone.


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.

Product care


Washing instructions

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.

Use a technical wash product (like Nikwax Tech Wash or Grangers Performance Wash) or pure soap. DO NOT use detergent, fabric conditioners or softeners. Rinse thoroughly in clean water.


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.


Repairs

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.


Alpine Bond

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.