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product photo of the mens NONhooded Peak 7 down jacket in colorway COSMOS with 700 fill power RDS certified HyperDry down jacket
$ 218.00
CosmosDeep Lake
CosmosDeep Lake
  • Sizing Chart

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The Peak 7 Down Jacket is a lightweight, stuffable midlayer designed for cold-weather activity in the mountains. It utilizes 700 fill-power RDS certified HyperDry™ Down encapsulated within a windproof ripstop nylon shell to keep you warm in cold, dry, and windy conditions. It has an eco-DWR coating to maximize it’s first level of defense against precipitation, while the HyperDry™ Down prevents internal moisture buildup.


  • Ripstop nylon fabric (20 Denier)
  • Hem & hood drawcords
  • 700 fill power RDS certified HyperDRY™ down
  • Eco-DWR coating
  • Water expanding thread
  • Integrated stuff sack in the left hand pocket.
  • Fleece lined mouth guard & a soft chin panel
  • Zippered hand pockets
  • Zippered interior pocket
  • YKK® zippers
  • Average weight: ~ 11oz


Regular Fit

  • Sizing Chart

Materials and Sustainability

YKK® is dedicated to perfecting the details which is why YKK® zippers have become a staple for premium products. Learn More.

The responsible Down Standard aims to ensure that our down is sourced from ethical supply chains and farms. Learn More.

We work with bluesign® system partners to ensure that our textiles are good for the planet, the people that make them, and the people who use them. Learn More.


Layers well with:

In the realm of high-altitude mountaineering, 

the importance of a reliable down jacket cannot be overstated. 

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  • Sizing Chart 
  • Mens 
  • Womens 

Measurement Guide

1. SLEEVE: With the elbow slightly bent, measure from the center of the neck (vertebrae), Over the shoulder, along the outside of the arm, and down to the wrist bone

2. CHEST: Measure beneath the arms at the fullest circumference of the chest

3. WAIST: Measure around the narrowest part of the waist. 

4. HIP: Measure around the widest part of the hip. 

5. INSEAM: Measure the inside of your leg from the highest point down to the ankle or desired pant length.


Find a soft tape measure and a helper.

If your sizes line up in two distinct different size categories for chest, waist, or sleeve, choose the larger size.

If your sizing is between two categories, size down for a slim fit and size up for a looser fit.