Designed to keep you dry and protected when the weather has a tantrum and throws its worst at you: wind, rain, sleet and snow. For all-day comfort and long-lasting waterproof durability for all your outdoor activities. 

• 3-layer construction for all-day comfort and wet weather protection
• 15,000 HH waterproof rating and 15,0000 MVTR breathability is best-in-class fabric performance
• YKK aquaguard zips, adjustable hood, hem and cuffs with OS Map sized pockets complete the feature set
• Fully recycled and recyclable at end of life, finished with a DWR free from PFC's

All-day comfort

Sigma's 3-layer breathable and waterproof membrane gives all-day comfort and wet weather protection. The adjustable hood with drawcord and rear toggle makes the practical hood easy to wear in wet and windy conditions. The jacket itself is rustle-free for "oh so quiet" moments with an almost imperceptible touch of stretch for ease of movement.

Its active cut, adjustable hem, velcro adjustable cuffs and YKK aquaguard zips make Sigma suitable for all your outdoor activities from hill-walking to scrambling and riding.

It's OS map-sized pockets complete the feature set of a classic outdoor waterproof.

Cutting edge technology

The Alpkit name means our waterproof jackets perform as you demand: waterproof and breathable. Not being signed to Goretex or the other component fabrics means we are free to innovate our fabrics with the worlds best mills. Our fabrics are cutting-edge in terms of performance and sustainability.

Sigma's fabric has been developed by us with performance and circularity in mind. It has 10,000 HH waterproof rating and 15,000 MVTR breathability rating makes it best in class for outdoor activity in the UK's temperate climates.

Check out how the breathability (15,000g/m²/day MVTR) and waterproof capability (10,000mm HH) of our fabrics compares with other brands and you will see just how good our fabrics are.

Impact

"A waterproof jacket hillwalking jacket that is eco-conscious too" The Ramblers Magazine

Sigma is designed with circularity in mind. It is made with a mono monomer construction. This means all components are made from the same material making the garment easier to recycle at the end of its life as it doesnt need to be broken down into separate recycling streams.

Sigma is made from 100% post consumer waste recycled polyester which itself is recyclable. Sigma's durable water repellent coating is entirely free from PFC's. Regularly wash and reproof your jacket at home to maintain its performance using Nikwax, Grangers or our own Alpkit Wash & Reproof care kits.

Do not be fearful that recycled implies a secondhand performance. Sigma has been tested for abrasion, durability, breathability and waterproofing.

Designer’s notes

"We designed Sigma with with wet weather performance, cross-over use and 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