The Calluna stands out with metallic and radiant details on stylish water resistant leather. This boot has removable cork and latex footbed and features a 1" polyurethane sole which is extremely lightweight, durable and slip resistant. This collection uses a hand-sewn Strobel construction making it strong and extremely flexible. n nAmerican Podiatric Medical Association (APMA) Accepted for promoting good foot health. Our patented Naot Replacement Footbeds are also available for Calluna.