Boiled wool slippers from the DUAL NATURAL collection by Wooppers
Felted Wool Clog - The Birch Store
Amazon.com | LE KAPMOZ Men's Winter Warm Boiled Wool House Slippers Breathable Winter Warm Slip on Mules Indoor/Outdoor Slipper for Women Dark Gray Felt Sole 40 | Shoes
Wesenjak 100% Boiled Wool Slippers Made in Austria 39 / US 8.5-9.5 Slip-on Knit | eBay
Scandinavian Felt Felted Wool Slippers for Women / Wool Clogs - Etsy