Outdoor Research Tundra Slip-On Aerogel Booties - Men's Saddle, XL

From the campsite to the ski cabin, the Outdoor Research Tundra Slip-On Aerogel Booties keep our feet toasty. Primaloft's ultralight, ultra-techy Aerogel insulation creates a barrier between our feet and the frigid air, trapping heat inside for all-day warmth.