Aero Down Jacket

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

Colour: Black

Ultralight down midlayer

Built for use as mid-layer insulation or as outerwear in cold, dry conditions, the ultralight Crux Aero jacket offers impressive warmth for weight, tipping the scales at a mere 225g for the size M. Yet is it stuffed with 95g of premium 800FP ethically recovered Polish goose down, delivering vital warmth for mountain missions. A full-zip, bound hem and cuffs, and twin zipped handwarmer pockets complete the feature set, while the stitch-through construction with horizontal and vertical baffles prevents down migration, keeping your insulation precisely where it needs to be.

    • Two zipped handwarmer pockets
    • Lycra bound hem and cuffs
    • Supplied with separate stuff sack
    • Filled exclusively with ethically recovered 800 fill power Polish goose down
  • Fill 800 fill power (EU) Polish white goose down
    Weight 225 g (size M)
    Fill Weight 95 g (size M)
    Shell Fabric 15 denier ripstop ripstop, 30 g/m²
    Lining Fabric 15 denier ripstop nylon, 30 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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