Mountain Equipment Paiyu Down Jacket - Blue - XL

The Paiyu Jacket is a highly compressible, down-insulated jacket designed for mountaineering and c...

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TisoMen's Mountain Equipment Paiyu Insulated Jacket - Navy - Size Xl - Insulated Jacket - Ski
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Product Information

Full details

The Mountain Equipment Paiyu Down Jacket is a high-performance, down-insulated piece of technical outerwear engineered specifically for mountaineers and climbers operating in extreme cold. Designed for 5,000 to 6,000m peaks and multi-day expeditions, it provides exceptional thermal efficiency through an innovative offset baffle construction that eliminates cold spots. While it offers superior warmth for its weight, its technical, expedition-focused design may feel excessive for casual or low-altitude winter activities.

All features

Age Groupadult
ColourBlue
GenderMale
MaterialNylon
SizeXL
Model Part Number007585-01759-XL
BrandMountain Equipment

Extended Product Information

FAQs

Is the hood compatible with climbing helmets?

Yes, the Mountain HC Insulated Hood is designed to fit comfortably over most standard climbing helmets.

Can this jacket be used in wet weather?

The DRILITE Loft fabric is water-resistant and windproof, but it is not fully waterproof. It is best used in freezing, snowy conditions rather than heavy rain.

How do I store the jacket long-term?

Always store the jacket hanging up or in a loose storage sack to allow the down to maintain its loft.

Does it come with a stuff-sack?

Yes, the jacket includes a dedicated stuff-sack for compression during climbs.

What is the primary difference between this and a box-wall jacket?

The Paiyu uses offset baffles to offer extreme warmth with less bulk and weight compared to traditional heavy box-wall construction.

Troubleshooting

Down feathers leaking through fabric

This is normal for high-loft down products. Do not pull the feather; instead, pinch the base of the feather from the inside and pull it back into the jacket, then gently massage the fabric.

Jacket feels flat or loses loft

Give the jacket a vigorous shake to redistribute the down, or tumble dry on low heat with clean dryer balls to restore the loft.

Pros and Cons

Pros

  • Eliminates cold spots via offset baffle design
  • Excellent warmth-to-weight ratio
  • Highly windproof and water-resistant outer shell
  • Helmet-compatible insulated hood
  • Internal mesh pockets prevent gear from freezing

Cons

  • Technical design may be overkill for casual use
  • Requires careful storage to maintain down loft
  • More expensive than general-purpose winter jackets

Setup, Compatibility & Care

To ensure the longevity of the down insulation, store the jacket loosely in a cool, dry place when not in use—avoid keeping it in the stuff-sack for extended periods. When washing, use a dedicated technical down detergent and follow a gentle cycle, preferably with clean tennis balls in the dryer to help re-loft the down. The jacket is designed for high-altitude layering; in most cases, it fits over standard base layers and softshell mid-layers. If you are climbing with a harness, ensure the jacket is layered appropriately to maintain access to your gear loops.

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