Thick and sturdy sole Suitable for both indoor and outdoor use Size Guide (approximate): Shoe Size External Sole Length (cm) 5 23 cm 6 24 cm 7 25 cm 8 26 cm 9 27 cm 10 28 cm 11 29 cm 12 30 cm 13 31 cm To determine your size, measure the length of your foot and add approximately 3 centimeters for optimal comfort. Then, select the corresponding size from the options above. For example, if your foot measures 27 cm, add 3 cm to make it 30 cm. Your moccasin size would be “12.” Please ensure that you measure from toe to heel on the footprint. Disclaimer: Authenticity of our UGG – style footwear Please note that in Australia and New Zealand, the term “UGG” has become commonly used as a generic term to describe a specific style of footwear. Returns for reasons such as change of mind or personal preference will require the customer to cover the cost of return postage. For other return requests, our dedicated team will carefully assess each case.