First Ascent Mountain Guide Lite Pants Women’s

Guide Pick™: Melissa Arnot, Solveig Waterfall




These are what our Guides wear on Rainier. And ice climbing, ski touring, skate skiing and general mountaineering. Highly technical lightweight pants with a slim fit, designed for mountaineering, backcountry touring and ice climbing. They're the perfect all-mountain pants for work and play.

"Comfortable, amazingly fitted technical fabric that does its job in camp and while climbing steep on the Lhotse Face or the jagged rocks on Ama Dablam." -Melissa Arnot

Specs Sizing Reviews


  • Four-way stretch 5.7 oz 87% nylon/13% spandex soft shell fabric throughout


  • StormRepel™ DWR finish repels rain and nasty weather


  • Fits a notepad or other small items


  • Fits over climbing boot, two grommets for quick tie-down



87% nylon/13% spandex
Knee and seat: 72% nylon/18% polyester/10% spandex
Size M: Reg. 31"
Garment weight: 13 oz
Machine wash

  Waist Hips Inseam
XS 25" 35" 30"
Small 26-27" 36-37" 31"
Medium 28-29" 38-39" 31"
Large 30.5-32" 40.5-42" 32"
XL 33.5-35.5" 43.5-45.5" 31"


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Reviews for the First Ascent Mountain Guide Lite Pants Women’s

5 out of 5 stars based on 5 reviews.

On 2012-04-13, Linda T McMillan wrote


I bought the First Ascent Guide Lite pants for my climb on Mt. Rainier. I've been training in them and I love them. I bought a small and they fit great. I'm 5'4" and 120 lbs. I love that they stretch with you as you climb, but yet they don't stretch too much to fall off - which my other brand did. I also love the belt option. The pockets are great for storing your GU chomps or a granola bar, too. I'm really glad I bought these.

On 2010-02-15, Bonnie wrote


Love them! Comfortable, well-designed pants made with quality materials. Stretch when you need it, but not when you don't (I agree with another reviewer who points out that they don't start sagging on day 2... or 3). I think they're a little more "womanly" cut than I like- if you don't have muscular thighs and bum be prepared for a little sagging in back, but nothing major. Perfect over a base layer or alone, which makes them versatile in multiple seasons! Definitely my new favorite pants... they've been skiing, cross-country snowshoeing, hiking, backpacking, etc and I have no complaints!

On 2010-02-05, Lina wrote


I love these pants! They fit really nice and they are extremely comfortable. Worth every penny!

On 2009-12-24, Suzanne wrote


These are nice pants, but they fit like jeans. They weren't really what I was looking for. I love Schoeller fabrics, and have decent luck with Eddie Bauer, but the combo didn't come together for me in these pants. They are trim in the thighs with a bootcut leg and are boy cut at the top. I fit in Mammuts much better for practical purposes. I have a trim but hourglass figure with a rounded posterior, and these would not accomodate it very well. I love my Mammut Champ Pants and will stick with those and recommend them if you're built like me. If my purpose was looking cute, the Moutain Guide Pants do look really really cute on from behind--like jeans--but that's not why I bought them.

On 2009-07-28, Anita Cech wrote


Fantastic pant! I've worn it for everything from glacier travel on Rainier to mixed climbing elsewhere in the Cascades. The fit is trim but not tight on an athletic (read muscular thighs) body, with features in all the right places: adjustable snap cuffs let me dispense with gaiters--or even roll up the pants; thigh pockets hold all my essentials (lip protection, compass, snacks, etc.); and the waistband sits comfortably under a harness--not overly high in the front, but plenty of coverage on the backside where it needs to be. I also love the fabric: it stretches every way I do without sagging, so no second-day wardrobe malfunctions en route. Plus, it breathes remarkably well, so I can go from alpine start through afternoon scorch and still feel comfortable. I've had a hard time finding a pant that I like since my old favorite began to disintegrate. I was skeptical about an unfamiliar brand, but the Mountain Guide Light has exceeded my expectations. It is a well-designed, durable pant worthy of many climbing adventures.

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