Featuring four-way stretch for maximum mobility, the Men's Summit Series Chamlang Soft Shell Pants have the technical and comfort-forward features you need for a successful alpine tour. Leg openings are designed specifically to accommodate a wide variety of boots, and WINDWALL™ fabric helps block frigid mountain winds — so you can move with confidence above the tree line on cold-weather ski tours, alpine ascents, and backcountry descents.
Regular Fit, Summit Series Mobility
A regular fit with the Summit Series mobility-focused pattern — layers cleanly over a baselayer, tucks into ski or mountaineering boots, and moves with you through skin tracks, kickturns, and high steps without restriction.
WINDWALL™ Wind-Resistant Fabric
Wind-resistant WINDWALL™ fabric blocks wind penetration and reduces the effects of wind chill — keeps the core warm during exposed ridge traverses, belay sessions, and cold descents where wind is the dominant weather factor.
Bonded Double-Weave Construction
Durable double-weave fabric has a bonded construction for increased weather resistance and four-way stretch — the bonded construction adds durability and weather protection without the bulk of a separate lining, and the four-way stretch moves with you through every direction of motion.
Non-PFC DWR Finish
A non-PFC DWR finish on the body causes light snow, wind-driven precip, and trail splashes to bead up and roll off — keeps the fabric from saturating during wet conditions and adds extra weather protection to the wind-resistant WINDWALL™ system.
93% Recycled Nylon Body
Body fabric is made with 93% recycled nylon — premium soft-shell performance with a much lighter footprint on the planet than virgin nylon construction.
Brushed Backer
A brushed backer on the inside of the WINDWALL™ fabric adds a soft, warm hand feel against the skin — provides light next-to-baselayer comfort and adds a small amount of thermal retention for cold starts and belay sessions.
Built-In Elastic Waistband + Webbing Belt
A waistband with built-in elastic has a low-profile, integrated webbing belt — the elastic keeps the pants in place during dynamic movement, and the integrated belt lets you dial in a custom fit without carrying a separate belt.
Zip-Fly with Snap-Tab Closure
A zip-fly with a snap-tab closure keeps the front secure on the move — fast, secure, and easy to operate one-handed at rest stops and during transitions.
Water-Resistant Hand Pockets
Hand pockets with exposed, water-resistant, reverse-coil zips keep gloves, snacks, and small essentials secure — the reverse-coil design sheds water and resists snagging on pack straps or harness leg loops.
Thigh Pocket with Internal Gear Loop
A water-resistant, reverse-coil-zip thigh pocket on the right with an internal gear loop holds a phone, skins, snacks, or a small piece of climbing hardware — the internal gear loop keeps keys, a belay device, or a glove clip secure during descents.
Articulated Knees
Articulated knees increase mobility for high steps, kickturns, lunges, and stemming on technical terrain — eliminates fabric bunching behind the knee when you're in a deep stance.
Stretch-Panel Gusset Leg Openings
Leg openings feature a water-resistant, reverse-coil zip and a stretch-panel gusset to accommodate a range of boots — the gusset expands to fit ski, mountaineering, and trail running boots, then zips down for a clean silhouette when worn over low-cut shoes.
Boot Tie-Down Eyelets + Snap-Tab
Leg openings have tie-down eyelets for easy integration with boots and a snap-tab feature for ease of use when gussets are expanded — the eyelets lace the pant cuff under the boot for technical climbs, and the snap-tab gives you a quick on/off option when the gusset is fully open.
Internal Bonded Kickpatches
Internal bonded kickpatches add durability at the most-abraded zone — protects the pant cuff from ski edge damage, crampon contact, and boot-buckle wear on the high-stress internal cuff zone.
Materials & Construction
Body Fabric
70D × 300D 240 g/m² WINDWALL™ — 93% recycled nylon + 7% elastane double weave with brushed backer and non-PFC DWR finish
Fabric Construction
Bonded double-weave with 4-way stretch
Recycled Content
Body 93% recycled nylon
Stretch
7% elastane (4-way stretch)
Water Repellency
Non-PFC DWR finish
Wind Resistance
WINDWALL™ (blocks wind penetration, reduces wind chill)
Durability
Internal bonded kickpatches + 70D × 300D yarn
Fit & Sizing
Fit
Regular fit (Summit Series mobility-focused pattern)
Average Weight
500 g (1 lb 1.6 oz)
Sizes Available
S · M · L · XL · XXL
Inseam Options
Short (SHT) 29.75" · Regular (REG) 31.75" · Long (LNG) 34.25"
Construction Details
Waistband
Built-in elastic + low-profile integrated webbing belt
Closure
Zip-fly with snap-tab closure
Hand Pockets
Exposed water-resistant reverse-coil zips
Thigh Pocket
Water-resistant reverse-coil zip + internal gear loop
Knees
Articulated knees for mobility
Leg Openings
Water-resistant reverse-coil zip + stretch-panel gusset to accommodate a range of boots
Boot Integration
Tie-down eyelets for easy boot integration + snap-tab when gussets are expanded
Kickpatches
Internal bonded kickpatches for added durability
Performance
Wind Resistance
WINDWALL™ (highly wind-resistant, blocks wind penetration)
Water Repellency
Non-PFC DWR finish (light snow / wind-driven precip / splashes)
Stretch
4-way stretch for full range of motion
Comfort
Brushed backer for next-to-baselayer warmth
Versatility
Gusset leg openings accommodate a wide range of boots (ski / mountaineering / trail running)
Activity
Best Use
Alpine touring · Backcountry skiing · Mountaineering · Ice climbing · Winter hiking · Ski touring · Summit pushes
Season
3-season + winter (cold-weather alpine + touring)
Designation
Summit Series
What's Included
In Box
1 × Men's Summit Series Chamlang Soft Shell Pants
Machine wash cold on a gentle cycle with a mild technical wash (like Nikwax Tech Wash or Granger's Performance Cleaner) — close all zippers (hand, thigh, leg openings) and secure any hook-and-loop before tossing them in.
Turn the pants inside-out before washing to protect the WINDWALL™ double-weave face fabric, the brushed backer, the bonded kickpatches, and the embroidered logo.
Tumble dry on low heat for 20-30 minutes to reactivate the non-PFC DWR finish — heat is essential to keep water beading on the surface rather than saturating the WINDWALL™ shell.
Do not bleach, do not use fabric softener, and do not use dryer sheets — all three can coat the WINDWALL™ double-weave fabric and degrade the DWR finish, the 4-way stretch, and the brushed backer next-to-skin comfort over time.
Do not iron, do not dry clean, and do not wring the pants when wet — wringing can damage the bonded double-weave construction, the internal bonded kickpatches, the 7% elastane stretch fibers, and the integrated webbing belt.
Re-apply a non-PFC DWR spray-on treatment (like Nikwax TX Direct or Granger's Performance Repel) after several washes to refresh the water-shedding performance of the WINDWALL™ fabric.
Inspect the internal bonded kickpatches and the leg-opening gusset zippers periodically for wear — the gusset zippers are the most-stressed component (frequent open/close) and benefit from a small application of zipper lubricant if they start to stick.
Check the boot tie-down eyelets and snap-tab mechanism on the leg openings periodically — the snap-tab is the most common point of failure on the gusset system, and a loose snap can be re-set with a snap repair kit.
Brush the brushed backer gently with a soft-bristle brush after drying to restore the soft interior texture — the brushed face can pill with heavy use.
Hang the pants on a wide hanger to dry fully between uses. Store hanging or loosely folded in a cool, dry, well-ventilated area — avoid long-term compression in a stuff sack, which can damage the bonded double-weave construction and reduce the 4-way stretch recovery over time.
