David Lintern's review in The Great Outdoors magazine positions the Definition as an exceptionally well-thought-out mountaineering waterproof jacket, highly suitable for winter mountaineering enthusiasts. In this review David draws attention to the jackets Eco credentials, cost and weight as well as comprehensive design features tailored for those who revel in high-altitude exploration and braving the wildest environments.
The Alpkit Definition ticks almost every box from a features perspective.
David works through a long list; waterproof shell boasting tailored sleeves designed for compatibility with gloves, a lower cut tail to prevent ride-up under a harness, and three sizeable outer pockets positioned to avoid interference with a harness or hipbelt. The hood, featuring a wired peak, is spacious enough to accommodate a helmet while still maintaining its shape in windy conditions thanks to the three-way 'cordlock' adjusters. Additional features include an internal phone pocket, Velcro sleeves, more cordlock adjusters at the hem, and a robust two-way front zip complemented by a press stud for added durability.
The Definition waterproof jacket claims an impressive 30,000mm of hydrostatic head, and a breathability measure (MVTR) of 20,000 g/m
Importantly, the jacket is equipped with ribcage zips to manage heat and moisture, alongside ample stormguards on the main zip and handwarmer pockets, ensuring robust protection against the elements. The Alpkit Definition claims a hydrostatic head of 30,000mm and a breathability measure (MVTR) of 20,000 g/m², underscoring its waterproof capabilities. However, David notes that the jacket's 6.6 denier nylon fabric can feel somewhat stuffy in warmer conditions, suggesting it is more suited for colder weather.
David suggests that the Alpkit Definition's durability, combined with its PFC-free DWR outer treatment and competitive pricing, makes it a smart purchase
for winter mountaineers and recommends it to The Great Outdoors readers.
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