Please read our size chart carefully!!! About the Shoes: Imported Synthetic sole COMFORTABLE EVA VAMP - EVA material has cold-resistant and heat-resisting properties, they is healthy and environmentally friendly. It protects your feet. LATTICE SLIP PROOF EVA SOLE - The anti-sliding texture of BUMPY GRID sole enhances the friction of the ground and walks without any burden. COMFORTABLE WARM and SOFT PLUSH INSIDE - It is made of warm wool and it has good thermal insulation. Comfortable and soft, keep your feet warm. Note:We use the EUR size. Please read our size chart carefully!!! it can help you choose the right size, based on the length of your foot. Note that if your feet too long or too wide, Please choose 1 size larger than usual. Women size: EUR 35= Foot Length 225mm=US5 EUR 36= Foot Length 230mm=US6 EUR 37= Foot Length 235mm=US6.5 EUR 38= Foot Length 240mm=US7.5 EUR 39= Foot Length 245mm=US8.5 EUR 40= Foot Length 250mm=US9 EUR 41= Foot Length 255mm=US10 Men size: EUR 39= Foot Length 245mm=US6.5 EUR 40= Foot Length 250mm=US7.0 EUR 41= Foot Length 255mm=US8 EUR 42= Foot Length 260mm=US8.5 EUR 43= Foot Length 265mm=US9.5 EUR 44= Foot Length 270mm=US10 EUR 45=Foot Length 275mm=US11 EUR 46=Foot Length 280mm=US12