Montane Astro Ascent eVent Trousers

eVent Hurricane 3 Layer / 30,000mm HH, 15,000 MVTR
Weighs 472g (Medium size)
Code: AW13357
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Montane's Astro Ascent Trousers are durable eVent waterproof overtrousers. The eVent fabric allows for excellent breathability which will keep your legs comfortable while you're still working hard on your trek or climb. 

Montane says:

Whilst climbing, protecting your legs from ice, rain and the cold can be critical. Legs have more direct contact with snow and spray than the upper body so ensuring weatherproof protection is essential. The Astro Ascent Trousers are constructed from highly breathable eVent Hurricane fabric and reinforced in critical areas with DIAMOND FACE; which provides dependable extra durability and protection from rock scrapes and ankle knocks.

These trousers have a slim tailored fit, reducing excess fabric when worn as an overtrouser and feature ‘high step’ articulation built into the knees to ensure they are comfortable across a range of dynamic movements. They also feature full length YKK Aqua Guard side zips for full mountain functionality.

|eVent Waterproof Fabrics use Direct Venting Technology - a proprietary and patented waterproof membrane allows millions of tiny pores to breathe at their full potential. Sweat vents directly to the outside of the fabric in one easy step. Click Logo to read more..
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Exceptional waterproof over-trouser from Montane, made from highly breathable eVent fabric. Although on the heavy side this reflects their extreme weather features such as full length waist to ankle side zips that means you can get them over winter weight footwear. The width at the ankle is similarly generous to accommodate large winter boots.

They have a zip fly which is a good feature that often gets removed when constructing a lightweight pair of overtrousers. So, they will cope comfortably with winter mountaineering conditions yet are still suitable for year-round use, although if you don't need such a demanding spec there are lighter alternatives.

- Reviewed by Ultralight Outdoor Gear


  • Constructed from breathable and waterproof eVent Hurricane 3 Layer fabric
  • DIAMOND FACE reinforcement fabric panel in knee and instep kick panels for extra durability and abrasion protection
  • Colour matched taped seams throughout
  • 12 – 13 stitch count on all seams versus a typical industry average of 8, creating a tight, clean and strong seam
  • 3mm seam allowance on all seams, reducing weight and bulk under the micro-tape creating a smooth and strong seam


  • Articulated knees and an active cut for high step movement, perfect for mountain use
  • Tailored rear and upper thigh to reduce excess fabric


  • Front waist flat elastication for low profile and snug fit
  • Brushed fine microfleece lined high waist band
  • Durable metal press stud at front waist fastening for extra security
  • Fly with YKK zip opening and bonded storm flap


  • Full length, two way YKK matte AquaGuard® side leg zips
  • Storm flap behind side leg zips with press stud at top and bottom
  • Metal eyelets for attaching footwear straps to lower hem
  • Hook and loop tab ankle adjustment for close fit against footwear and to prevent heat loss
  • Featuring hook and loop calf tabs that reduce the volume around the calves minimising wind resistance and the likely possibility of abrasion on the inner lower leg
  • Fabric: eVent Hurricane 3 Layer
  • Reinforcement fabric: DIAMOND FACE
  • Zips: YKK matte Aqua Guard
  • Available in regular leg length only.
  • Fit: Active Mountain
  • Activities: Mountaineering / Mountain Walking / High Trekking / Backpacking
  • Small weighs 450g
  • Medium weighs 472g
  • Large weighs 494g
  • XLarge weighs 514g
  • XXLarge weighs 534g
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