Havaianas Flash Urban - Black Havaianas Flash Urban - Perfect if you're after a stylish and secure fit! Featuring an asymmetric slingback strap and signature textured footbed for added comfort. *Approved with school uniforms in some regions. Havaianas are made from premium Brazilian rubber To find the best Havaianas size for you, please refer to the following information. Note that Havaianas = Brazilian sizing, which is different to European sizes. Refer to the size chart below for Brazilian to NZ size and length (in cm) conversions.