If you are willing to travel this store has stock available now.
The ultra-snug Men's Nuptse Tent Slippers are the perfect post-hike remedy for tired feet. The Primaloft® insulation offers incredible warmth and comfort, ideal for slipping on at camp to protect your feet in the coldest temperatures. The durable recycled ripstop provides resistance to water and rugged environments.
Great slippers - not super cheap but worth the price for comfort.