How to choose correct size? 1.Measure your foot length as the photo(please do not measure the insole length). 2.Find the "US Size" from the size chart by your foot length! Suggestion: If your feet length is 26cm, you can choose US8; 1.Breathable Shoes Upper #Breathable ice silk yarn/Thin Good ventilation mesh 2.Nitrogen Rubber Outsole #Stable and Safety# #Comfortable and damping# 3.Product Information #Upper: Breathable ice silk yarm Lining:Breathable Mesh +Sponge #Outsole:MD+Air cushion +RB Insole Breathable Mesh+PU Foam Ice Feeling upgrade, cool summer Easy and effortless, running through the city. Run through the city/Four-layer air cushion. Not broken, not leaking Nitrogen stabilization More durable, more elastic, more shock absorption More durable, More stable, More elastic, More shock asbsorption Breathable ice silk yarn/Thin Good ventilation mesh High tension/More wear-resistant, more breathable Bionic octopus Strong adsorption of the ground Help is easier 1.How To Place Order Choose product----Add into shopping cart----Place order----Price adjustment(if necesary)----Installed----Payment verification 2. 24 Hours Fast Shipping We guarantee to ship out within 24 hours after payment confirmation (except Holiday).If there is any unexpected situation (for example, if the ordercan not ship out within 48 hours), we will contact you as soon as possible, and follow up closely to ship your order soon 3.Feedback If you are satisfied with our products and service,please leave us 5 stars feedback as well.It is very important to our business developme