For this year’s winter drop, Ardith and the design team set out with a mission: develop a product that makes the coldest days of the year runnable. We’re not talking balmy days in the 30s — we’re talking bonafide freezing cold temperatures in the teens or below; the days where your skin hurts and no pace or distance is enough to warm you up. We’re calling it Superwarm™.

After putting seven different fabric combinations through the wringer, we landed on a dual-fabric system that makes the Superwarm™ Run Tight our most cold-proof layer yet. The foundation is our namesake fabric, Superwarm™, an ultra-brushed, stretch woven grid fabric used at the front and back body to keep you warm in your most sensitive areas. This material is windproof, utilizing a durable water repellent finish to keep sleet and snow at bay. Paired on the upper with Superwarm™ is our new brushed compress knit, Arctica™. The combination of these two new fabrics allows for unrestricted movement from the knee down while maintaining cold-weather protection. Arctica™’s hollow yarns, similar to the hollow fur of a polar bear, create an insulation chamber between the body and outside air, working together to deliver soft, insulating warmth that naturally blocks harsh temperatures without absorbing excess moisture.
Once we dialed in the Superwarm™ recipe, the natural progression was to turn it into a pair of running pants that work as a protective layer for a cold weather running system. The Superwarm™ Run Pant is made with an easy fit in the thighs, a tapered fit from the knee down, and finished with zippers at the ankles, allowing you to easily pull them on and take them off as needed.

Superwarm™ pants are ideal for layering over a pair of half tights (or full tight if you’re going super tundra mode). We like to pull on a pair of the Superwarm™ Run Pants on a day when extra warmth is needed during the warmup then take them off before the pace picks up.
Here from Ardith herself on Superwarm™ in this season's Evolution Report: