éNote 1: 1. The size standards of different countries or different manufacturers are different, your foot length is the sole criterion for choosing size. 2. Please check the size table to choose your foot length. If your foot breadth is wider than normal, Please choose one size larger. 3. Measurements are the maximum size, please allow 0.5-1 cm tolerance. Compare the chart size with your feet length carefully before ordering. 4. When charging, please charging two shoes together, please do not just charging one of them. 5. Please do not charge it more than 3 hours. Long time charging is no good for battery. Package includes: 1 pair shoes and 1 pcs USB charge line Note2: 1. When charging, slowly pull the plug slowly. 2. Switch hidden inside shoes,it nearby the USB port,you can press it to fix the shoe on one color,or flashing. 3. Please don't wash, if needed, can be colorless shoe polish / cleaner, don't insolate, don't force the impact heavy items. Size Chart: 5 B(M) US Women /3.5 D(M) US Men=foot length 221-225mm/8.7-8.8in 6 B(M) US Women /4 D(M) US Men=foot length 226-230mm/8.9-9.0in 6.5 B(M) US Women /4.5 D(M) US Men=foot length 231-235mm/9.1-9.2in 7.5 B(M) US Women /5 D(M) US Men=foot length 236-240mm/9.3-9.4in 8.5 B(M) US Women /6 D(M) US Men=foot length 241-245mm/9.5-9.6in 9.5 B(M) US Women /6.5 D(M) US Men=foot length 246-250mm/9.7-9.8in 10.5 B(M) US Women/7.5 D(M) US Men=foot length 251-255mm/9.9-10.0in 11 B(M) US Women /8.5 D(M) US Men=foot length 256-260mm/10.1-10.2in 12 B(M) US Women /9 D(M) US Men=foot length 261-265mm/10.3-10.4in 13 B(M) US Women /9.5 D(M) US Men=foot length 266-270mm/10.5-10.6in 14 B(M) US Women /10.5 D(M) US Men= foot length 271-275mm/10.7-10.8in 15 B(M) US Women /11 D(M) US Men= foot length 276-280mm/10.8-11.0iné