Kelly’s/Fiebing’s Cork Re Birkenstock Repair Seal Waterproof Protector 2.4 oz Kelly’s Cork Renew, 2.2 fl Oz. – Seals and Waterproofs Cork Surfaces – Non-toxic formula prevents corkbeds from cracking and flaking. Use on your favorite sandals to extend the life of the cork footbeds.Shoe Care & Accessories SCS Direct, Inc. Our eBay Store About Us Contact Us Add to Favorite Sellers Kelly’s/Fiebing’s Cork Re Birkenstock Repair Seal Waterproof Protector 2.4 oz Kelly’s Cork Renew, 2.2 fl Oz. – Seals and Waterproofs Cork Surfaces – Non-toxic formula prevents corkbeds from cracking and flaking. Use on your favorite sandals to extend the life of the cork footbeds. Shoe Care & Accessories Product Details