Pyro Down Jacket

⇨ Use code OFFER5 for a 5% discount on this product

Colour: Green

Box-wall jacket for ultimate warmth

Crux confidently asserts that for its weight, the Pyro is the warmest jacket you will find anywhere. We can believe it. The secret to its warmth lies is its meticulous box-wall construction, which unlike stitch-through down jackets, minimises cold spots and heat dissipation. These baffles are stuffed with premium 850 fill power Polish goose down, while a longer length and an adjustable hood further help to lock in vital warmth. The two hand-warmer pockets are complemented by an internal chest pocket to complete a functional feature set that offers all you need with nothing you don’t.

    • Premier box-wall baffle construction
    • Two zipped hand-warmer pockets
    • Internal chest pocket
    • Adjustable, helmet-compatible hood
    • Adjustable hem and cuffs
    • Filled exclusively with ethically recovered 850 fill power Polish goose down
  • Fill 850 fill power (EU) Polish white goose down
    Weight 535 g (size M)
    Fill Weight 180 g (size M)
    Shell Fabric 20 denier ripstop nylon, 41 g/m², 1000 mm PU coating
    Lining Fabric 15 denier ripstop nylon, 29 g/m²
    X-Small cm 84-85 74-76 69-74
    Small cm 90-97 76-79 75-80
    Medium cm 98-103 79-82 80-82
    Large cm 104-110 85-87 88-95
    X-Large cm 111-118 86-89 96-100
  • Down is a very resilient insulating material and, with basic care, any down jacket should last you a very long time. There are two simple rules to ensure longevity:
    1. Always store your jacket uncompressed in a dry, airy place
    2. Try to keep it as clean as possible to minimize washing (this ultimately damages the down)

    We highly recommend you hand-wash your down garment or, alternatively, use a professional service.

  • Sustainability through longevity - Crux guarantees all products for ten years from the date of purchase to the original customer. This guarantee is against defects in materials and craftsmanship. Should any flaw appear due to defective materials or craftsmanship, Crux will repair or replace the product.

    Ethically sourced materials - Crux only use Polish down which has been 100% ethically recovered.

  • Crux kit is designed for mountaineers, by mountaineers. Well, actually, by one mountaineer – since this specialist brand is entirely owned and operated by New Zealander Carol McDermott.

    Carol is a trained chemicals and materials engineer with a background in the outdoor industry. He’s also a highly experienced alpinist and climber, with ascents in most of the world’s great ranges to his name. That’s a pretty good CV for designing the world’s most uncompromising outdoor kit, focused purely on performance in the most demanding conditions. Which is why Crux use only the best quality materials, like Polish white goose down and premium Japanese fabrics, with stringent quality control that puts the big brands to shame.


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