- Features
- Ultralight Down-proof Fabric
- 800 Fill Power Goose Down - The Best Down Available for Maximum Warmth, Guaranteed Minimum Fill
- Zippered Hand Pockets - For Convenience
- Elastic Draw Cord Hem - For Adjustability in Serious Weather
- Packs into Pocket
- Specs
- Colors:
- Black (001)
- Bright Navy (2293)
- Cinder (1415)
- Green Lime (4680)
- Team Red (6278)
- Center Back Length:27in / 68.6cm
- Overall Weight:10.1 oz / 286.3 g
- Main Material:100% Polyester DWR Bantam Ripstop 1.1 oz/yd
- Lining Material:100% Polyester DWR 1.8 oz/yd
- Insulation Material:800 Fill Goose Down
- Colors:

Down
From the beginning, down has been Marmot’s foremost insulator. No synthetic surpasses the lightweight, compactability and longevity of down.

Marmot Down DNA:
Down is in our DNA. Marmot was founded in 1974 as a manufacturer and seller of premium quality down jackets, vests and sleeping bags. To this day we only use the finest quality certified goose down for our down insulated outdoor products. Mountaineers and outdoor enthusiasts worldwide rely on Marmot down gear for warmth, comfort, and sometimes survival.
Marmot Down Quality:
Down quality is determined by fill power and durability which is dependent upon the age/maturity of the bird and the processing of the down. The best down comes from larger, more mature birds and goose down is better than duck down (when age/maturity are equal). More mature goose down has larger filament clusters than less mature goose down. These clusters, when grouped, provide many more trapped air pockets and therefore provide better insulation. To maximize the effectiveness of the down clusters, the proper processing of the down (sorting, washing & drying) is required to open them up.
Higher fill power means higher loft, better insulation, lighter weight, and greater durability. We test all of our down for content, cleanliness, species, and fill power. We guarantee minimum fill power for all of our down clothing and sleeping bags. That means, for example, that our 800 fill sleeping bags are guaranteed to have at minimum 800 fill power. We don’t believe in + or – variation when it comes to comfort.
Down Origins:
Down is the light, fluffy undercoating at the base of the feathers of waterfowl. Down is a multi-dimensional structure that insulates by creating pockets of still air that retain body heat. Down is highly breathable and exceptionally comfortable. Pound for pound, high quality down is the most efficient natural insulator there is.
Geese are raised primarily for food and the down that is derived from them is a by-product of the food industry. Geese are raised on large and small farms and roam free outside on these farms. This is their natural environment. They are not raised indoors in controlled conditions. Geese are grain fed and also have access to local plant life.
Geese are generally harvested after 4-9 months for food. Some female geese are kept for breeding stock and are harvested between 1-2 years. These are the geese called the “mother birds” that provide the best, most mature down. After the geese have been harvested for food, the down and feathers are removed, washed, dried and then sorted by separating the down and small feathers from the larger, heavier feathers. These processing methods determine the final quality and fill power of the down. Marmot currently buys down primarily from Russia, Poland & China.
Marmot Guaranteed For Life:
Since 1974 we’ve guaranteed every product we’ve made for the life of the product. We believe the best thing for everyone and the environment is to make products that last.
Have a closer look - download the Marmot down desktop and keep your computer warm.

Mountain Sports and Living Spring 2010 Zeus
Ultimate Set-up Fast Packing Mountain Gear
Simple. Comfy. Warm. Marmot’s Zeus down vest is made with 800-fill goose down, weighs next to nothing, and because it stuffs into its own pocket, is easily stowed in your pack.
Curly's Clips - Marmot Down
Marmot's own Curly Cervone and Randy Verniers explain why Marmot Down is the best on the market.
Size Chart Mens Tops
Men’s Jackets, Parkas, Sweaters & Shirts (unisex sizing)
Sizing by Height / Weight
| 4'11"-5'2" | 5'2"-5'6" | 5'6"-5'10" | 5'10"-6'2" | 6'2"-6'6" | |
| 90-110 lbs | XS | S | |||
| 110-135 lbs | XS | S | M | ||
| 135-160 lbs | S-M | M | M-L | ||
| 160-195 lbs | M-L | L | L-XL | ||
| 195-230 lbs | L | L-XL | XL-XXL | ||
| 230-265 lbs | XL-XXL | XXL-XXXL |
Sizing by Body Measurements
| XS | S | M | L | XL | XXL | XXXL | |
| Jackets/Parkas/Sweaters/Shirts (unisex sizing) | |||||||
| Chest | 33-35 | 36-38 | 39-41 | 42-45 | 46-49 | 50-53 | 54-57 |
| Neck | 13.5-14 | 14.5-15 | 15.5-16 | 16.5-17 | 17.5-18 | 18.5-19 | 19.5-20 |
| Sleeve | 30-31 | 32-33 | 34-35 | 35-36 | 36-37 | 37-38 | 37-38 |
Garment Sizing Information
The charts above will help you select the proper size. If you have questions, please call our customer service representatives at (888) 357-3262.
Care Instructions
Marmot does not recommend dry cleaning for any of our products. Gore-Tex® fabric products, MemBrain® fabric products, down insulated products, and fleece are all machine washable. You should use a commercial front loading machine and follow the care instructions.








Reviews and comments
on 2/25/10.
I'd like to know which down vest is the lightest and which one is the warmest. The Guides vest or the Zeus vest.
Thanks, Guff
on 3/31/10.
What is the fill weight and total weight of the vest?
Ben
on 7/20/11.
I have the blue vest in small. It is 800 fill and my kitchen scales reports it is exactly 9 ounces.
on 4/29/10.
Same questions as above. Fill weight and total weight (both man and woman) + comparison Guides vs Zeus vest + what level of "waterproofing" (ie. can one take a quick pee under the rain without adding a rain jacket, or just enough to sustain drizzle, or no dampness at all ?). Thank you. Michelle
on 9/30/10.
Awesome quality! This vest is warm and extremely light! The perfect addition to any sweater when the weather isn't warm enaough to wear nothing and isn't cold enough to wear a jacket! Perfect!
on 12/17/10.
Great Buy
on 12/17/10.
Love it.
on 1/15/11.
Awesome vest. Lightweight and highly compressible. Clean design. Great to wear when you want to increase your core temperature, but not impede arm movement.
on 1/25/11.
Does it fit tall guys? I'm 6'4", 185lbs
on 2/10/11.
yes, nausetiggy - it will fit you well. I'm 6'4 200lbs and just got a large - fits perfectly!!! (I didn't try on the medium, but I think I'd probably do the large if I were you...I'm a slim guy, and it was slim and long.)
on 2/22/11.
My medium weighs in exactly at 10oz. Puffiness between sweater weight and serious cold weather, great alone or as mid-layer. Nice step up from DriClime as temp drops. DWR adequate. Close fit keeps warm air in. Too trim if you are not trim. Inside pockets great for balaclava, trail guide, etc. Tall collar great when wind kicks up.
on 5/19/11.
just purchased mines today and i love it!
on 8/23/11.
Great vest. Warm, very light. Have to pack for a star party, where it gets cold at night as we enjoy the night skies in the high desert of Oregon. Construction of garment appears to be of high quality.
on 9/6/11.
I use my Zeus Vest exclusively as my only insulating mid-layer guiding in Alaska on backpacking trips. It saves weight and keeps me extremely toasty even when it gets down to the low 40's in August -- just make sure you have a nice shell to keep it from getting wet.
on 1/7/12.
Does anyone know the zipper length for the XL? I am tall and would like to know before buying.
on 6/14/12.
Check out our tables under the sizing tab.
on 4/23/12.
Nice vest. Large weighs 11 oz before cutting off tags. I'm 5'10' and 195 lbs and the large was the right choice for me.
on 10/25/12.
XL weighs 11 7/8 oz, and zipper length is 29 inches. I am a big Marmot fan. My previous Marmot vest, bought sometime in the mid 1980's, was adopted by my son, an entomologist who spends a lot of time in the field. He uses it a lot. This vest and a shell is a very flexible combo. I travel with these all over the world. The old vest has a tougher outer fabric and so is a little less supple. The new one is more comfortable. I hope this one is as durable. The left pocket has a double-pull zipper and can serve as a stuff sack, which makes a surprisingly comfy pillow. Brilliant!
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