A full zip for quick on and quick off adds another level of functionality to these lightweight, full-protection rain pants, while the Marmot NanoPro™ 2.5 Layer coating offers unprecedented performance with its Dynamic Air Permeability and long term durable waterproofness.  Marmot® NanoPro™ Waterproof/Breathable Fabric  100% Seam Taped  Full Length Side Zips with Bonded Storm Flaps  Zip Front Hand Pockets  Sized Specifically for Women Main Materials - NanoPro™100% Nylon Ripstop 2.2 oz/ yd Fit - Regular Fit Weight - 0lbs 12.8oz (362.9g) NanoPro What is it? Marmot’s most comfortable waterproof/breathable coating 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™ coating utilizes a new microporous technology with a pore structure that is 30 % smaller than previous generations. These very small, very densely packed pores allow 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. What are the benefits of this technology? The most technically advance 2.5 Layer coating on the market. Offering unprecedented performance in a coated fabric with it’s Dynamic Air Permeability, and long term durable waterproofness. Marmot NanoPro™ is 43% more breathable then our previous coating technology. This advancement in fabric technology brings a new level of performance to value conscious consumers. Performance Specifications Waterproofness: 10,000 mm minimum JIS-L 1092 Breathability: 17,000 gm / 24h minimum JIGS-1099 B1 Hohenstein RET: 5.0 to 5.4 Technology: 2.5 layer Microporous Coating with Dry Touch finish