Built for the most demanding alpine conditions, SummitTherm Men’s ¾ Performance Insulated Base Layer Pants combine premium materials with smart design.
- Fortius™ Air 20 nylon shell ensures breathability and light weather resistance
- Torrent™ 190 microfleece panels add softness and stretch for effortless movement
- Coreloft™ Compact 60 insulation warms without adding bulk—even when wet
- Short inseam fits perfectly with ski and snowboard boots
- Next-to-skin fit supports easy layering for cold-weather performance
- Ethically made with bluesign®-approved recycled content
These insulated pants are ideal for winter ascents, offering comfort from base camp to summit. Whether you’re chasing powder or climbing peaks, this top rated thermal underwear for outdoor activities helps you stay agile and warm.
Claudia Dorsey (verified owner) –
I wore these on a weekend ski trip and they kept me warm without overheating—hands down the best insulated base layer pants for skiing I’ve ever owned.
Jason Hall (verified owner) –
Super comfortable and lightweight. They fit perfectly under my snowboarding gear and didn’t bunch up. Highly recommend if you’re looking to buy thermal pants for winter sports.
Ryan Moore (verified owner) –
Warmth where it counts and breathable where it matters. These insulated pants delivered all day on the mountain.