Hign-concerned Chemical:None Feature:Breathable Material:SPANDEX Boot Height:Mid-Calf Gender:Men Origin:Mainland China CN:Fujian How to choose the correct size: Step 1. Please measure your foot length carefully,when you choose the size. Step 2. Please choose the correct size according to yourfoot length For example, if your foot length is 26 cm , youshould choose the size 42 . Step 3. If you are not sure of the correct size, you can click Contact Us !!! NOTE: D on't choose the size based on the Insole length and Outsole length! Feet length =Insole length -(0-1.5) cm 1. Please allow 1-1.5error due to the Manual Measurement;2.Please choose the size only according to your foot length;3. lf your feet is wide or thick, we suggest you choose one size large