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a product photo of the mens non-hooded accelerator down jacket in colorway DEEP SPACE with 850 fill power RDS certified HyperDry down jacket
$ 310.00
Medic BlueCloudy SkyMonk RedDeep SpaceTrailblazer Blue
Medic BlueCloudy SkyMonk RedDeep SpaceTrailblazer Blue
  • Sizing Chart

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The Accelerator Down Jacket is an ultra-lightweight, high performing down jacket designed for versatile warmth in cold-weather. It'g going to be your new go-to choice when temps drop. The Pertex® Quantum ripstop nylon shell keeps the wind out and holds 4oz of RDS certified 850 fill-power HyperDry™ Down for lightweight windproof warmth in dry conditions. DWR coating and water expanding thread act as the first defense against precipitation, while the HyperDry™ Down prevents internal moisture buildup. Synthetic Insulation Mapping in high moisture areas keeps you warm while you are working hard. An ergonomic articulated fit reduces weight and volume, making it warmer and even more enticing to throw in your pack for a ‘just in case’ moment. Hem and hood drawcords prevent any chance of updraft - keeping you incredibly toasty. 


It’s athletic fit is designed to fit perfectly over a base layer (and potentially a whisper thin midlayer). This takes advantage of down’s insulating properties by reducing dead space between your body and the down. If you are looking to layer more than this underneath, we recommend sizing up.


**The design of this jacket was inspired by our Altocumulous Down Jacket**


  • Eco-DWR coating
  • Approx. 4 oz. of RDS Certified 850 fill power HyperDRY™ down
  • Fleece lined mouth guard & a soft chin panel
  • Pertex® Quantum fabric
  • Synthetic insulation mapping
  • An athletic, articulated fit
  • Hem & hood drawcords
  • Internal zippered pocket
  • Zippered hand pockets
  • Integrated stuff sack in the left hand pocket.
  • YKK® zippers
  • Average weight: ~ 12.2 oz


Athletic Fit

  • Sizing Chart

Materials and Sustainability

Durable, long lasting performance is the foundation of all Pertex® fabrics and is never a point of compromise. Learn More.

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. 

Customer Reviews

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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.