Canvas exterior with soft fuzzy lining. These are cushy! Please measure your foot, as we do not accept returns or exchanges on footwear. Measurements are shown on the chart. It’s s good idea to measure another shoe that fits. From our models, we have experienced that the following are more or less equivalent. 35-5, 36-5.5, 37-6, 38-6.5 to 7, 39-7.5-8, 40-8 to 8.5 Shoes may be tried on at the shop but mail orders cannot be exchanged due to our sanitary policy.