Mountain Hardwear Kor Alloy Tight - Women's

Strategic warmth and breathability define Kor Alloy Tight for cold-weather miles

What Our Gearhead® Experts Are Saying:

"I use these for winter trail runs and cold-weather touring days. The insulated panels at the seat and knees make a noticeable difference when it’s frigid, but the rest of the fabric breathes well so I don’t overheat on climbs. The slim fit layers easily under shells, and the stretch keeps my stride totally unrestricted."

When frosty air settles over the trail and snow crunches underfoot, we pull on the Kor Alloy Tight from Mountain Hardwear to keep our stride strong. Built for winter miles and midseason touring, these insulated tights balance warmth and mobility so we can push through cold starts and shaded switchbacks.

Pertex Quantum Air panels at the knees and seat block wind and resist light moisture, while 40g Primaloft Gold Active insulation traps heat right where we need it most. AirMesh lining enhances breathability to prevent overheating during hard efforts, and stretch woven fabric moves naturally with every climb and descent. An elastic waistband with drawcord secures the fit, and zippered hand pockets stash small essentials. Slim and streamlined, they layer comfortably under bibs or shells for versatile cold-weather performance.

Details

Insulated tights for winter running, hiking, and backcountry touring
Pertex Quantum Air fabric offers breathable wind and weather resistance
40g Primaloft Gold Active insulation at seat and knees for targeted warmth
AirMesh lining enhances ventilation during high-output efforts
Stretch woven panels provide unrestricted range of motion
Elastic waistband with drawcord for secure, adjustable fit
Slim profile layers easily under shell pants or bibs
Item #MHWZA81

Responsible Collection: Recycled/Repurposed
Material: [face fabric] 85% polyester, 15% elastane, [knees, seat] Pertex Quantum Air 20D coated ripstop (100% nylon), [upper front, back hip, waistband] Pertex Quantum Air 20D stretch ripstop (59% recycled nylon, 41% nylon), [lining] AirMesh (100% polyester), [insulation in seat and knees] 40g Primaloft Gold Active (60% recycled polyester, 40% polyester)
Fit: slim
Length: full-length
Pockets: 2 zippered hand
Thermal: yes
Activity: running, hiking, skiing, snowboarding
Manufacturer Warranty: limited lifetime