Sizing: Crocs use US sizing on the sole, with one-size conversion for UK sizes and two sizes for other Europe markets (see size chart below) (e.g., Women UK 6/EU 38-39) What size should I buy? Crocs come in whole sizes only. If you typically wear a half size, we recommend you order a size up Heat: Do not expose Crocs shoes to extreme heat or intense sunlight for an extended period of time because the unique nature of the Crocs PCCR material means high temperatures may cause them to warp Water-Friendly: These Men's And Women's Sandals are Water-Friendly and designed to channel water away. Needless to say, If you'll be near the water, you'll want to have these sandals with you Make each pair unique: Customise your pair of Crocs sandals with fun Jibbitz charms that can be inserted into the ventilation ports and create your own personalised Crocs style One of the best of Crocs basics gets an upgrade, with a refined upper for better fit and a more modern aesthetic. This Baya II Slide still features fully molded Croslite material, maximum lightweight cushioning, and signature ventilation.