This  flat bottom

sling back strap

Featuring a slightly higher heel cup with a soft

hardened plastic shell for added motion control and stability

Water and Stain Repellant | ANGELUS birkenstock This flat bottomWhen properly applied, this Water & Stain Repellent will provide an invisible protective coating that repels water & stains to keep shoes clean and dry. Recommended Use: Surface to be treated must be clean and dry. Apply 2 3 even coats to the desired area. Allow about 30 minutes of dry time in between coats and let completely dry before wear (at least 12 hours). Note: Excessive spraying may temporarily darken some color and natural leather.