Patagonia Men's Dirt Roamer Storm Pants

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The Dirt Roamer Storm Pants are designed for mountain-biking adventures in less than ideal weather. They are lightweight, packable, fully waterproof pants that breathe and stretch as you pedal through storms. Features include abrasion-resistant reinforcement in high-wear areas, an adjustable waist, patterning to fit your on-bike posture and zips that allow you pull the pants on over footwear. Fair Trade Certified™ sewn.


  • Regular fit
  • Waterproof, breathable recycled 3-layer shell has a knit backer to prevent clamminess
  • Abrasion-resistant reinforcement at knees, seat and crotch
  • Mountain-bike-specific OppoSet® adjustable waist: simply hold the button while pulling the webbing tail to tighten
  • Tailored hip, waist and knee areas contour to fit on-bike posture
  • Two waterproof, zipped thigh pockets
  • Zipped leg openings allow for pants to be pulled over shoes and pads
  • Fair Trade Certified™ sewn, which means the people who made it earned a premium for their labour


Average Weight 295g
Made From H2No® Performance Standard shell: 3-layer, 3.5oz 40D 100% recycled nylon stretch plain weave with a soft polyester knit backer and a DWR finish
Panels: 3oz 20D 100% recycled nylon solid ripstop bonded to a 100% polyester circular-knit back with a DWR finish
Technologies Used

H2No® Performance Standard: is a testing standard that test waterproofness in 3 ways: simulated light rain, prolonged rain and forcing water through the face of the fabric. It also tests breathability by measuring the Moisture Vapor Transmission Rate (MVTR) and durability by subjecting the fabric to a "Killer Wash" - a wet flex and abrasion rest that simulates years of use in drenching conditions. The standard is Patagonia's benchmark for waterproofness, breathability and durability and ensures the highest level of long-term waterproof performance. The standard is 20,000mm before and 10,0000 after their Killer wash test. 2-layer H2No® Performance Standard shell fabrics are completely waterproof, windproof and breathable and made with a water-repellent shell fabric and a waterproof/breathable membrane; 2.5-layer shell fabrics are waterproof, windproof, breathable and highly-packable and have an additional protective top coat barrier that allows the garment to go without an internal lining fabric; 3-layer shell fabrics are waterproof, windproof and breathable due to a combination of a water-repellent shell fabric, a waterproof/breathable membrane and an ultralight knit backed that is highly packable, comfortable next-to-skin and built to withstand long-term exposure in extreme environments.

Recycled Nylon: Although Patagonia have been using recycled polyester in their garments for 20 years, for some reason locked deep in polymer chemistry, nylon is more difficult to recycle than polyester. After years of research, development, and testing, they're finally finding some recycled nylon fibres that are suitable for apparel. Some of the recycled nylon they use comes from post-industrial waste fibre, yarn collected from a spinning factory, and waste from the weaving mills that can be processed into reusable nylon fibre. They're diligently searching for a success story with recycled nylon. The challenge lies ahead of them, and they're committed to discovering the best methods to recycle nylon fibre, but it appears this evolution will take many years.

Fair Trade Certified™: Patagonia® pay a premium for every Fair Trade Certified item that carries their label. That extra money goes directly to the workers at the factory, and they decide how to spend it. The program also promotes worker health and safety and social and environmental compliance, and encourages dialog between workers and management.


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