UKC

Alpkit Definition Jacket Gear News

© Alpkit

12 years in the making, our fully waterproof and breathable Definition Jacket is engineered to cope with whatever you, the mountains, and the weather can throw at it.

Men's Definition Jacket  © Alpkit
Men's Definition Jacket
© Alpkit
Women's Definition Jacket  © Alpkit
Women's Definition Jacket
© Alpkit


The Definition jacket is a fortress, it is designed to face the foulest, wettest, windiest, snowiest, wildest weather. Fully featured and tough as old boots, this is the jacket that will take whatever abuse you want to throw at it, from Scottish winter, alpine climbing to Munro bagging.

Definition is breathable and waterproof. Its face fabric and backer are manufactured from tough nylon for superb durability. Sandwiched between these is a waterproof / breathable PU/PTFE membrane; the result is the best combination of durability and breathability available in heavier weight 3 layer fabric. It is our most durable jacket yet.

Fit for purpose doesn’t just mean waterproof - it has to fit you! Definition is designed to sit over your other layers, its cut is tuned so that it does not ride up to expose your back or tum when you swing your axes above your head. The hood is large enough to fit over a climbing helmet and deflect spindrift from engulfing your core.

The mountains are a changeable environment and you are not always going to want to be locked down. Definition can be adapted as conditions change or your work rate varies. We have used Cohaesive™ cordlock adjusters where they improve function, inverted vent zips for quick climate control - the vent position also means you can access the pockets on your inner layers without undoing the jacket.

We know you are going to be wearing a rucksack a lot of the time so we have designed the placement of the pocket and vent zips to stay clear of your shoulder straps and hip belt, or climbing harness.

Fast hood adjustment, wired peak, chest pockets, draft excluders, pit zips for ventilation, internal storm flaps, YKK AquaGuard zips all contribute to the full package.

Definition is destined to become a faithful companion on your epic adventures for years to come.

Key features

  • Helmet compatible hood with wired peak, embedded Cohaesive™ front adjusters and easy-grab rear adjuster
  • 2-way opening YKK Vislon AquaGuard® front zip
  • Internal storm flap with bottom snap and chin guard
  • 2 map sized hand pockets (positioned above harness/ waist belt) with YKK AquaGuard® zips
  • 1 external chest pocket with YKK AquaGuard® zip
  • 2 core body venting YKK AquaGuard® zips, inverted for ease of use
  • Gusseted cuffs with anti-snag Velcro adjustment
  • Embedded Cohaesive™ hem adjusters, accessible from inside hand pockets or at the hem
  • 1 internal YKK zipped chest pocket

Vital stats

  • 145 gsm 3 layer fabric
  • Face: 40 D x 90 D Nylon
  • Backer: 20 D Nylon tricot
  • Bi-component PU/PTFE membrane
  • 20d nylon tricot
  • Hydrostatic head: 30,000 mm
  • MVTR: 20,000 g/sqm/24hrs
  • 100% windproof
  • PFOA Free C6 DWR
  • YKK Aquaguard zips
  • Weight (g): S: 485, M: 490, L: 530, XL: 550 , XXL: 580
  • Origin: China


For more informaiton visit Alpkit.com




6 Dec, 2016
These look great - if they turn out to work as well as they look they might, for 200 quid I think Alpkit will be on to a real winner. Is there one out on UKC test? Hope so - I reckon this could be one of those products that could really shake up the market in a good way.
Hey Toby, yes we've got one out on test. It looks really good, and our tester's certainly taken with it
6 Dec, 2016
If they are good, you could see these becoming almost like uniform for student winter climbers up and down the country - a proper full on winter shell for climbers at half the cost of much of the competition.
7 Dec, 2016
Difficult to compare the tech spec with the industry standard. How does 20D nylon shell with a 20D tricot liner and presumably some D (?) for the membrane compare to the 80D of a 2nd gen Tupilak? Is Alpkit doing its own thing in their charming shed-built way, or are they disguising the fact that their "burly" shell is in fact paper thin? The 40D fabric on the first-gen Tupilak ripped at the sight of a deadman.
7 Dec, 2016
I was a bit surprised at the price tbh. You can easily pick up a Mountain Equipment (amongst others) Gore shell suitable for similar use for around the same price, and a ME Drilite one for a bit cheaper. Think at that price it's actually not that competitive if you look about.
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Product News at UKC presents climbing, walking and mountaineering equipment posts that will be of interest to our readers. Please feel free to comment about the post and products on the associated thread.
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