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Ultralight Mountain Pant


Blue Steel
Sizing Product Care

Hyper-reduced in form yet built with single-minded purpose, the Quantum Air fabric moves silently and is highly breathable. The fabric’s incredible softness feels like it hovers directly above the skin, with none of the clamminess of windshells. This is a magic layer over shorts or for travel, when packing as light as possible. With its stylish flair, you’ll feel at ease in UM Pant when rolling into the rooftop bar at the end of a long ‘work’ day.

  • Pertex(r) Quantum Air (softness + breathability + stretch)
  • Minimal design waist and ankle draw cords
  • Packs into its own rear pocket
  • Gusseted crotch
  • Extremely light weight
  • Size medium weighs 95g / 3.4 oz
  • Fast Drying
  • Can be worn as a unisex pant, size down one size for women
  • Fit - male model is athletic 5'7" wearing size small
  • Fit - female model is tall & slim 5'10" wearing size x-small (size small would be recommended for a more full figured person)


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