Sigma is a multi-activity 3-layer waterproof jacket for year-round protection.

Made from fully recycled and recyclable fabric with a PFC-free DWR.

3-layer construction maximises breathability and durability with a quiet face fabric and soft touch backer for next-to-skin comfort.

An elasticated hood with wired peak and rear drawcord, semi-elasticated cuffs, adjustable hem and YKK AquaGuard® zips keep you protected in strong wind and rain. Plus, two map-size front pockets with mesh lining for easy venting.

Sigma is the perfect year-round waterproof. Durable, comfortable and sustainable.


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

Product overview

  • 3-layer fully-recycled polyester fabric
  • Single polymer contruction is easily recycled at end-of-life
  • YKK AquaGuard® zips
  • Low profile semi-elasticated cuffs
  • 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

Technical details

Vital stats

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


Fabric: 3-layer construction with PFC-free DWR

Face fabric: 140gsm 50D, 100% recycled polyester ripstop
Membrane: 100% polyester
Backer: 100% polyester knit




400g (size medium)

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 & 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

Washing instructions

Washing: 30° delicate cycle or hand wash 
Drying: line dry or tumble dry on low heat
Ironing: use a cool iron to reactive the DWR.

Use a technical product wash or pure soap. DO NOT use detergent, fabric conditioners or softeners.

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.

Size Guide

Men's waterproof jacket size guide

Size chart (inches)
Chest 34 37 40 43 46 49
Waist 28 30 32 34 36 38
Sleeve 32 33 34 35 36 36
EU 44 46 48 50 52 54
US 34 36 38 40 42 44

Size chart (cm)
Chest 86 94 102 109 117 124
Waist 71 76 81 86 91 97
Sleeve 82 84 86 88 90 92
EU 44 46 48 50 52 54
US 34 36 38 40 42 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.


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.

Fit guide


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.


Sigma in action