The size measurement shows the inside size of the boot. Please measure the length of your foot and choose size according to our Size Chart in the Product Description. We suggest you choose one size up if your feet is either thick or wide. If you find the boots are a little bit large, try putting insoles for better fit. When the fur is dirty, please wipe it with damp cloth and blow dry with a hair dryer to re-fluff the fur. Perfect warm snow boots to wear in cold days, put them on then you will stand out from the crowd and get planty of compliments. They could be ideal gifts for your girlfriend, wife, mom, sisters, grandma, families, friends, etc. Size Chart: EU 36=4 M US Women=Heel to Toe 230mm(9.06")-----EU 37=5 M US Women=Heel to Toe 235mm(9.25")-----EU 38=6 M US Women=Heel to Toe 240mm(9.45")-----EU 39=7 M US Women=Heel to Toe 245mm(9.65")-----EU 40=8 M US Women=Heel to Toe 250mm(9.84")-----EU 41=9 M US Women=Heel to Toe 255mm(10.04")-----EU 42=9.5 M US Women=Heel to Toe 260mm(10.24")-----EU 43=10 M US Women=Heel to Toe 265mm(10.43")-----EU 44=11 M US Women=Heel to Toe 270mm(10.63")