- Features
- Polartec® Power Dry® with Cocona® Performance Technology - Polartec Power Dry with Cocona Performance Technology
- Flat Lock Construction
- Fabric Stretch Ensures Perfect Fit
- Gusseted Crotch - For Ease of Movement
- Elastic Cuffs - For Comfort
- No Side Seams - For Greater Comfort
- Double Fabric Front Fly Panel - For Greater Warmth and Wind Protection
- Quick Dry - Quick Drying
- Natural Odor Management
- Wicking Moisture Management
- Specs
- Colors:
- Black (001)
- Weight:4.6 oz / 130.4 g
- Main Material:Polartec®Power Dry® 96% Polyester (29% Cocona®), 4% Elastane Midweight 4.2 oz/yd
- Colors:
Marmot Tech Manual
If you are a tech geek and want to know everything about our current technologies, click here to download our tech manual.
Polartec® Brand Video
Polartec, LLC is the developer, manufacturer and marketer of Polartec® performance fabrics. Polartec® products range from lightweight wicking base layers, to insulation layers, to extreme weather protection and are utilized by the best clothing brands in the world.
Polartec® Power Dry® Wicking Demo
See the benefits of Polartec® Power Dry® Wicking technology, used in all Marmot Lightweight and Midweight Baselayer garments.

Polartec® Power Dry®
Polartec® Power Dry® fabrics are designed to keep your skin dry when you sweat. All fabrics in this series feature a patented bi-component knit construction that uses different yarns on either side of the fabric. This creates two different surfaces: one that is optimized to move moisture away from the skin, the other to dry quickly.
Moisture and high relative humidity next to the skin cause discomfort. Polartec® Power Dry® keeps the skin dry through three complementary mechanisms:
1) The fabric is highly breathable and does not restrict the movement of moisture vapor.
2) “Touch points“ on the fabric inner surface draw off the sweat. Sweat is wicked off the skin to the outside of the fabric where it spreads rapidly for evaporation. Polartec® Power Dry® fabrics move at least 30% more moisture away from the skin than single component fabrics.
3) When the sweat reaches the outside of the fabric, it spreads out to many times its original surface area, enabling it to dry at least 2 times faster than cotton.
Technical Highlights
1) Patented bi-component construction keeps your skin dry when you sweat
2) Highly breathable to provide comfort in all activities; does not restrict the movement of moisture vapor
3) Dries quickly
4) Provides very good sun protection (UPF 15) in most styles
5) Soft surface next to skin provides all-day comfort
6) Machine washable

Marmot BacteriaStat with A.M.Y.
Anti-Microbial Yarns (A.M.Y.) permanantly control odor while protecting the skin.
Marmot BacteriaStat with A.M.Y. is a non-migratory silver ceramic polymer additive embedded into the polymer matrix of the polyester yarn before extrusion, finishing and knitting. The silver ions from the ceramic polymer of BacteriaStat shut down the breeding process of bacteria to elimiate odor, but cannot migrate to the skin.

Upcycle® Baselayer
Marmot UpCycle® products minimize our impact on the environment by using natural, organic, and recycled or discarded materials that would otherwise end up in landfills.
As part of Marmot’s efforts to utilize more eco-friendly materials, we partnered with Polartec, LLC in an exclusive relationship to develop the latest technically advanced baselayer through natural means, using Polartec® PowerDry® Cocona® Technology, instead of using chemical treatments.
Marmot UpCycle®
Marmot UpCycle® products utilize the discarded waste materials from manufacturing processes in the creation of new products in order to minimize our impact on the environment. Marmot’s entire fall 2007 collection of men’s and women’s baselayer is made from Polartec® PowerDry® fabric with Cocona® performance technology – a Marmot Upcycle® product.
What is Cocona®?
Cocona® is derived from would-be discarded or “upcycled” Coconut shell husks. The husks are then processed into activated charcoal carbon and blended into a polyester matrix, which is spun into a fiber and then knit into a baselayer fabric. Cocona® is integral to the fiber, naturally occurring and cannot wash out.
Benefits of Cocona®
1) Dries incredibly fast – 25% faster, addressing the user’s needs
these days with shorter trips requiring maximum performance
2) Controls odor naturally – no anti-microbial treatment
3) Provides UV protection – resists UV rays, rated UPF 40+
4) Outstanding comfort – soft hand, luxurious next to skin
5) Natural & Permanent – naturally enhanced performance that lasts a lifetime!
Cocona® vs. Bamboo Carbon
Activated carbon molecules from Cocona® have two distinct characteristics which make it superior to bamboo carbon. First, the larger pore size in activated Cocona® carbon molecules adsorb odor better and refreshes easier and faster. Bamboo carbon molecules, with their smaller pore size, trap odor molecules. Second, because of Cocona’s larger pore size, there is also greater surface area. This surface area, enough to cover 1.5 football fields, transfers and spreads away moisture and dries faster.
Mountain Gazette 136 Midweight
Truly Something New and Useful
Here’s the buzz on Cocona fabric: warm, light, dries quickly, stops UV and maybe most importantly, doesn’t hold stink like normal polypro – all because it is made with coconut husks. Now before you envision sad monkeys staring at the dead hulks of palms on the beach, know that according to TrapTek, the originator of Cocona fabrics, they use recycled coconut husks from the food industry. And while the coconut is the key ingredient, the fabrics with Cocona technology are still primarily made out of other fibers like cotton or polypro. This, of course, raises the next green question, “Well, where do those materials come from?” The ground, baby, the ground.
Anyway, seeing as how it is in the 90s right now in Colorado, and MG is not sending me to ski in South America any time soon, I had to devise a method to test the claims of Marmot’s “baselayer” while maintaining my current day job (notice that companies no longer refer to this stuff as underwear, because apparently, we are all four years old and can’t handle it without giggling). I decided to paint houses in the heat while wearing my Marmot top underneath a long-sleeved cotton shirt for 10 days without washing either garment. I also made my attention-starved roommate sniff the shirt so as to have an independent opinion because, according to me, I never stink. The results of the doubly-brutal experiment? Well the shirt kept me really, really warm. Despite me sweating profusely, the fabric definitely wicked with the best. The UV protection was too little too late as I was already raisonized by the sun back in June. And the stink? The shirt was understandably malodorous by week’s end, not only with sweat, but paint fumes, too. However, after washing it with unscented biodegradable detergent, the fabric truly smelled like nothing but air. I was a little bummed it didn’t smell like coconuts, actually.
Really, warm undies like these from Marmot are something I want to put on and forget about. Without the old smells to remind me of where I have been, I can focus on where I am going, instead. I can already hear myself chanting “put the lime in the coconut…” as I hike up Highlands Bowl this November. By Chris Kalous
Adrian Ballinger's Countdown to Everest Part 3: Packing for the Expedition
Adrian Ballinger, Marmot Athlete and owner/operator of Alpenglow Expeditions, shows us what he's bringing to Everest as he prepares to guide the highest peak in the world.
Watch Countdown to Everest - Part 1.
Watch Countdown to Everest - Part 2.
Adrian Ballinger is a fully certified AMGA/IFMGA Guide and runs Alpenglow Expeditions. This April Adrian will be guiding on the most famous mountain in the world: Mt Everest.
To learn more about Adrian visit marmotpro.com.
Size Chart
| 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 | |
| Parkas/Jackets/Sweaters/Tops (Unisex) | |||||||
| 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 |
| Pants/Bibs (Unisex) | |||||||
| Waist | 26-28 | 28-30 | 31-33 | 34-36 | 37-39 | 40-42 | 44 |
| Hip | 36-38 | 38-40 | 40-42 | 43-45 | 46-48 | 50-52 | 56 |
| Inseam (reg) | 28 | 29.5 | 31 | 32.5 | 33 | 33.5 | 34.5 |
| Inseam (short) | 26 | 27.5 | 29 | 30.5 | 31 | 31.5 | 32.5 |
| Inseam (long) | 30 | 31.5 | 33 | 34.5 | 35 | 35.5 | 36.5 |
| Gloves (Unisex) | |||||||
| Girth | 6.5-7 | 7-7.5 | 8-8.5 | 9-9.5 | 10-10.5 | ||
| Parkas/Jackets/Sweaters/Tops (Women's) | |||||||
| Size | 4-6 | 6-8 | 8-10 | 12-14 | 14-16 | ||
| Bust | 30-32 | 32-34 | 35-37 | 38-40 | 41-43 | ||
| Sleeve | 29-30 | 30-31 | 32-33 | 34-35 | 36-37 | ||
| Pants/Bibs (Women's) | |||||||
| Size | 4-6 | 6-8 | 8-10 | 12-14 | 14-16 | ||
| Waist | 22-24 | 24-26 | 27-29 | 30-32 | 33-35 | ||
| Hip | 33-35 | 35-37 | 38-40 | 41-43 | 44-46 | ||
| Inseam (reg) | 27.5 | 28.5 | 30 | 31.5 | 32 | ||
| Inseam (short) | 25.5 | 26.5 | 28 | 29.5 | 30 | ||
| Inseam (long) | 29.5 | 30.5 | 32 | 33.5 | 34 | ||
| Gloves (Women's) | |||||||
| Girth | 6-6.5 | 6.5-7 | 7.5-8 | 8.5-9 | |||
Kid's Sizing (boys & girls)
| XS | S | M | L | XL | |
| Age | 4-5 | 6-7 | 8-9 | 10-12 | 13-15 |
| Chest | 24-26 | 26-28 | 28-30 | 30-32 | 32-34 |
| Waist | 19-21 | 21-23 | 23-25 | 25-27 | 27-29 |
| Hip | 24-26 | 26-28 | 28-30 | 30-32 | 32-34 |
| Inseam | 17-18 | 19-20 | 21-22 | 23-25 | 26-28 |
| Sleeve | 22-24 | 24-25 | 25-26 | 26-28 | 28-30 |
| Height (in.) | 36-42 | 42-48 | 48-54 | 54-60 | 60-65 |
| Weight (lbs.) | 35-42 | 42-50 | 50-60 | 70-90 | 90-115 |
Garment Sizing Information
The charts above will help you select the proper size.
If you have questions, please call us.
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 12/14/10.
Just what my son wanted
on 12/14/10.
4 times i have tried to buy it and it will not give me any check out instructions. I ordered from another site on to buy a vest, can you direct me to one that works?
on 2/22/11.
Thank you for your interest in Marmot. Please, choose your size and color and click "buy now". On the right-hand side, a list of retailers that have this item in stock will pop up. Click on one of those and purchase the product you want. Thank you!
on 2/20/11.
Hi,
I bought this baselayer this winter, it's perfectly functional, absorbs the moisture very well, but again the outer material has a low quality, not really touche friendly.
Functions and fits perfectly
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