Gravitas [Mens]

Ultra-lightweight waterproof jacket

$169.99 $199.99

Ultralight waterproof jacket for fast-paced running, riding and racing: a barely-there-barrier for ultimate wet weather freedom

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  • UK Small
  • UK Medium
  • UK Large
  • UK X-Large
  • UK XX-Large

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Gravitas [Mens] Ultra-lightweight waterproof jacket

$169.99 $199.99

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This item is on pre-order. It is due to arrive in stock soon and should be available from soon. We'll keep you up-to-date with your order progress and despatch as soon as it is available.

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Gravitas is one of the lightest 3-layer waterproof jackets available - a mere 170 grams for the Men’s medium. It’s a dream to move in too with a quiet and supple fabric that’s comfortable next to the skin.

Its 3-layer fabric makes the Gravitas much more durably waterproof and breathable than 2 or 2.5L fabrics, and we’ve used an ultrafine 7 denier nylon to sandwich the super thin PU waterproof membrane, keeping you as light on your feet as possible.

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With 30K MVTR breathability and 20K HH waterproofing, the Gravitas has all the performance you need to keep you warm and dry for sweaty workouts in hostile weather. A lovely, soft tricot knit backer eliminates any cold clamminess on the inside.

The large hood with a stiffened wired peak has a simple rear adjuster and a semi-elasticated opening so you can yank it on in sudden downpours without stopping to undo your zip. The cuffs are cut to protect the backs of your hands and feature semi-elasticated openings for comfort. It’s also been designed with minimal seams and no visible stitching throughout to reduce snag and wear points, including on the ample-sized hidden chest pocket.

Feather-light and packing down into its own pocket-sized stuff-sack, throw it in your race vest for fell runs, squeeze it into seatpacks for bare-bones bikepacks, or even clip it to the back of your harness when the weather’s looking iffy.

Best In Test Winner - and "Worlds apart comfort... super-light and very breathable, the Gravitas manages to balance minimalism with functionality"

"All in all, an excellent, no-nonsense, shimmering shard of lightweight loveliness" - Outdoors Magic

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Key Features

  • Ultralight 3 layer construction uses 7 denier outer and inner fabrics and a super thin PU membrane, allowing it to pack up small into its own stuff sack
  • Highly breathable and waterproof fabric (30K MVTR and 20K HH respectively) for high intensity activities in wet weather
  • Protective hood has a wired peak and a rear adjuster to stay secure in winds, plus an elasticated opening to pull on and off easily
  • Tricot knit backer is comfortable next to the skin and the supple 47 gsm fabric is quiet and easy to move in
  • Semi elasticated cuffs are cut to protect the back of your hands and the hem is secured by two adjusters
  • Minimal seams reduce seam taping and lack of visible stitching reduces snag and wear points
  • A hidden chest pocket is large enough to fits hats, gloves and maps
  • YKK Aquaguard front zip, protected by a minimal storm flap
  • 3 Year Alpine Bond

Vital stats




Hydrostatic head: 20,000mm
MVTR: 30,000g/sqm/24hrs (minimum)


47 gsm 3 layer fabric
Outer Fabric: 7d nylon
Membrane: PU membrane
Inner Fabric: 7d nylon tricot
Seams: Taped seams (FRA approved)


S: 165g; M: 170g; L: 180g; XL: 185g

Origin: China

Care & Environmental Advice

Product Care Information

The better you look after this jacket, the better (and longer) it’ll look after you. Well, when we say ‘look after you’... it’s not gonna make you cups of tea or bring you breakfast in bed, but it will keep you nice n’ dry. And the good news is: it’s dead easy to do. 1) After you’ve finished going nice places and doing good things, treat your jacket to a wash at 30°C with either a dedicated Tech Wash (like Grangers and Nikwax) or pure soap. This keeps your jacket breathable by stopping the Durable Water Repellent (DWR) coating from getting clogged up with dirt and skin oils. No one likes a sweaty, clammy jacket. 2) If it’s stopped beading (rain soaking in rather than forming droplets), you can reactivate the factory-applied DWR by sticking it in the tumble drier on a low setting or applying a cool iron to it (under a tea towel). 3) To keep your jacket beading, you’ll probably need to top up the DWR once or twice a year using a Grangers or Nikwax re-proofer. You can find out more about why this is important here. If you’re still a bit unsure about washing your jacket, you can also take it/send it to our Ambleside store’s waterproof washing service and we’ll sort it all out for you.

Environmental considerations

We treat all our waterproofs with PFOA-free DWRs, cutting out some pretty nasty chemicals. Unlike our insulation and sleeping bag ranges, our waterproofs are not yet PFC-free. We’re still looking for a PFC-free DWR that’ll provide the same long-lasting performance for waterproofs, but we are working on it!

We make gear you’ll love for longer: gear that lasts; gear you’ll use, repair, re-use and pass onto someone else when you’ve finished with it. That’s why all our products have a three-year Alpine Bond warranty as minimum. We’ve always thought that the most environmentally friendly product we can make is the one that gets used the most and lasts the longest. So that’s what we do - it’s pretty simple really.

Size Guide
Men's waterproof jacket sizing chart
Chest (inches) 37" 40" 43" 46" 49"
Waist (inches) 30" 32" 34" 36" 38"
Chest (cms) 94 102 109 117 124
Waist (cms) 76 81 86 91 97
EU 46 48 50 52 54
USA 36 38 40 42 44
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.
Hips: standing with your feet together, measure around your hips at the widest part.
Aleks Wears Gravitas Across Europe

Travelling light and fast and putting a waterproof through plenty of miles

Gravitas awarded Wanderlust Best Buy

Super light, super waterproof, super breathable.

Gravitas First Impressions

despite the super competitive £120 price-tag, this is anything but a budget effort

Gravitas Full Review

Gravitas is light without feeling flimsy, has good levels of breathability and waterproofing and has been nicely put together from an impressively light three-layer fabric and its hood is quietly brilliant checks out Gravitas

Alpkit have added a range of waterproofs to their direct-to-consumer website. All are good value ..... Gravitas jacket is their super lightweight option though. It is not a bike-specific jacket, but ticks the boxes that I’m looking for. It comes with a fully featured hood, which will fit over a climbing (or riding) helmet, three layer breathable waterproof fabric, a chest pocket, a little mesh stuff sack… and little else

Nicky Spinks reviews the Laika and Gravitas

it is never out of that wash / dry / wear / repeat cycle Review the Gravitas

as perfectly suited for being stowed for emergencies or used frequently as a minimalist jacket for fast moving days.

OM Gravitas Review

the Gravitas is simply a really, really good lightweight waterproof shell full stop

Outdoors Magic Gravitas Review

The Alpkit Gravitas is not only great value for money, it’s one of the best lightweight jackets on the market

UKH/UKC Gravitas Review

Super-light and very breathable, the Gravitas manages to balance minimalism with functionality


The Details

Gravitas in action