A featherweight phenom, the minimalist construction of the Marmot Women’s Essence Jacket makes use of state-of-the-art NanoPro® MemBrain® stretch fabric that is waterproof and highly breathable. The attached hood, integrated cooling vents and a free-moving design enhance the sleek, streamlined shape. Tack on just enough features – a water-resistant chest pocket and 360-degree reflectivity – to this lightweight hooded marvel, and you get an incredibly packable 142 grams of perfection. Quick Specs 141.7 grams, ultra-lightweight! Superlight 20 denier stretch NanoPro waterproof and breathable Membrain 100 % tape sealed Waterproofness: 10,000 mm minimum Breathability: 20,000 to 47,000 gm / 24hr Helmet compatible hood with laminated moldable brim Chest pockets with water resistant zips Integrated cooling vents Asymmetric cuffs with elastic 360 degree reflectivity Elastic drawcord hem Angel-wing unrestricted movement Athletic fit Ideal for running, fast and light hiking, travel, mountain biking. NanoPro™ Membrain What is it?The pinnacle of 2.5 layer lamination technology Marmot NanoPro Membrain™ is Marmot's most comfortable waterproof/breathable technology ever. NanoPro's™ superior microporous structure is dynamically air permeable, allowing for air exchange to help shed excess moisture vapor without compromising the waterproofness or windproofness of the garment. How does it work?Marmot NanoPro Membrain™ utilizes a new microporous lamination technology with a pore structure that is 200% smaller than previous generations. These very small pores (three microns in size) are very densely packed allowing for enhanced breathability while maintaining excellent waterproofness. This pore structure is also air permeable allowing for dynamic air exchange. This air permeability combined with the enhanced breathability creates a fabric that is incredible comfort through a wide range of actives.To further improve breathability NanoPro Membrain™ is laminated together using a new advance process that reduces the amount of adhesive necessary to bond the membrane with the fabric. This new lamination process combined with the thinness of the lamination helps to maximum breathability, and greatly improves the drape and hand of the fabric.What are the benefits of this technology?Quiet with a soft supple hand, Marmot NanoPro Membrain™ technology has created the most comfortable 2.5 Layer fabrics that Marmot has ever offered. Up to 140% more breathable then our previous 2.5 lamination technology, its unsurpassed breathability and superb waterproofness make it our high performance choice for lightweight 2.5 Layer garments.    Performance Specifications Waterproofness: 10,000 mm minimum JIS-L 1092Breathability: 20,000 to 47,000 gm / 24h JIGS-1099 B111,700 to 12,500 gm / 24h JIGS-1099 A1CFM: 0.14 to 0.20 CFM Air PermeabilityHohenstein RET: 2.9 to 4.0Technology: 2.5 Microporous lamination with Dry Touch finish   Marmot Sizing Chart and Fit Guide - WOMEN   XS S M L XL Size (US) 2 4-6 8-10 12-14 16 Chest 32-33 34-35 36-38 39-41 42-44 Sleeve 30.5 31 31.5 32.5 33.5 Waist 24.5-25.5 26.5-27.5 28.5-30.5 31.5-34.5 34.5-36.5 Hip 35-36 37-38 39-41 42-45 45-47 Inseam* 30-31 31-32 32-32.5 32.5-33 33 Women's Inseam: SHORT 29     REG 31    LONG 33*Pants with multiple inseams (Outerwear)Note: to work out your sleeve length, the measurement should be taken from center back of the neck, down to the elbow and then to the wrist. Wash and Care Instructions Because you have invested in (or are thinking about investing in) one of the most technically advanced pieces of apparel or equipment you'll ever own and we want to make sure you have the information you need to protect and care for your purchase. Proper care assures you will optimize the performance of your Marmot product and maximize its service-life. Clothing Care Delicate Cycle Machine wash cold with like colors Powdered detergent No fabric softeners Do not iron Do not bleach Do not dry clean Tumble dry low Close all fasteners  Backpacker Magazine Editor's Choice Award Winner, 2014 Ultralight, highly breathable, affordable: Pick two. That’s the old rule for choosing a hardshell. The Essence nails all three, breaking the rule and raising the bar for the category. We wore the 6-ounce shell from Pacific Northwest rainforests to 15,000 feet on Peru’s Salkantay Trek, getting absolutely hazed by wind and water, and we came out dry. “I hiked hard for hours through Washington’s Core Enchantment Zone in a steady rain in the 50s,” says one tester, “and I couldn’t overwhelm it.” The key: Marmot’s new NanoPro Membrain fabric, a 2.5-layer, air-permeable membrane that incorporates tiny, densely packed pores. To keep it light, the shell tends toward the minimalist (one chest pocket, no adjustable cuffs) and replaces pit zips with interior mesh panels under the arms to vent heat. (The shell fabric extends over both sides of the mesh, but a slit in the middle allows for free airflow while preserving weather protection.) The streamlined hood adjusts with a Velcro tab in back to help dial in fit, and the small brim shielded testers’ eyes from everything but sideways rain.Despite its skimpy weight, the slightly stretchy, 12-denier nylon face fabric proved durable: “I repeatedly scraped it against granite while scrambling in the Cascades, and it still looks perfect,” says a tester. Fit is trim but accommodates a midlayer and slim puffy, and the shell’s ample shoulder cut allows for free reaching without yanking the hem out of a hipbelt. Marmot Women's Essence Jacket - ultra-light, waterproof, ultra-breathable